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14 January 2016 by 210.84.4.97 -
Added lines 32-33:
  • The late Herbert Schneemann’s web site: A wonderful private collection of calculators belonging to and documented by the late Herbert Schneemann who contributed so much to the construction of Rechenmaschinen-Illustrated.
13 January 2016 by 210.84.4.97 -
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  • https://archive.org - allows an Internet Archive search for manuals and other digitised documents relevant to the history of calculation technology. Searches may be made on items such as Monroe calculator; comptometer; as well as Le Calcul Mecanique, Catalogue Du Musee Section A Instruments Et Machines A Calculer - Conservatoire National Des Arts Et Metiers; Rechnen mit Maschinen - de Beauclair; [[https://archive.org/details/computingmechani00anto|Computing Mechanisms and Linkages - Antonin

Svoboda]]; and much else.

to:
  • https://archive.org - allows an Internet Archive search for manuals and other digitised documents relevant to the history of calculation technology. Searches may be made on items such as Monroe calculator; comptometer; as well as Le Calcul Mecanique, Catalogue Du Musee Section A Instruments Et Machines A Calculer - Conservatoire National Des Arts Et Metiers; Rechnen mit Maschinen - de Beauclair; Computing Mechanisms and Linkages - Antonin Svoboda; and much else.
13 January 2016 by 210.84.4.97 -
Changed line 69 from:
  • - allows an Internet Archive search for manuals and other digitised documents relevant to the history of calculation technology. Searches may be made on items such as Monroe calculator; comptometer; as well as [[https://archive.org/details/lecalculmecaniqu00doca |Le Calcul Mecanique, Catalogue Du Musee Section A Instruments Et Machines A Calculer - Conservatoire National Des Arts Et Metiers; Rechnen mit Maschinen - de Beauclair; [[https://archive.org/details/computingmechani00anto|Computing Mechanisms and Linkages - Antonin
to:
  • https://archive.org - allows an Internet Archive search for manuals and other digitised documents relevant to the history of calculation technology. Searches may be made on items such as Monroe calculator; comptometer; as well as Le Calcul Mecanique, Catalogue Du Musee Section A Instruments Et Machines A Calculer - Conservatoire National Des Arts Et Metiers; Rechnen mit Maschinen - de Beauclair; [[https://archive.org/details/computingmechani00anto|Computing Mechanisms and Linkages - Antonin
13 January 2016 by 210.84.4.97 -
Changed lines 69-71 from:
  • - allows an Internet Archive search for manuals and other digitised documents relevant to the history of calculation technology. Searches on items such as Monroe calculator; comptometer; [[https://archive.org/details/lecalculmecaniqu00doca |Le Calcul Mecanique, [[ https://archive.org/details/cataloguedumusee00unse|Catalogue Du Musee Section A Instruments Et

Machines A Calculer - Conservatoire National Des Arts Et Metiers]]; Rechnen mit Maschinen - de Beauclair; [[https://archive.org/details/computingmechani00anto|Computing Mechanisms and Linkages - Antonin Svoboda]], to name just a few.

to:
  • - allows an Internet Archive search for manuals and other digitised documents relevant to the history of calculation technology. Searches may be made on items such as Monroe calculator; comptometer; as well as [[https://archive.org/details/lecalculmecaniqu00doca |Le Calcul Mecanique, Catalogue Du Musee Section A Instruments Et Machines A Calculer - Conservatoire National Des Arts Et Metiers; Rechnen mit Maschinen - de Beauclair; [[https://archive.org/details/computingmechani00anto|Computing Mechanisms and Linkages - Antonin

Svoboda]]; and much else.

13 January 2016 by 210.84.4.97 -
Changed lines 69-72 from:
to:
  • - allows an Internet Archive search for manuals and other digitised documents relevant to the history of calculation technology. Searches on items such as Monroe calculator; comptometer; [[https://archive.org/details/lecalculmecaniqu00doca |Le Calcul Mecanique, [[ https://archive.org/details/cataloguedumusee00unse|Catalogue Du Musee Section A Instruments Et

Machines A Calculer - Conservatoire National Des Arts Et Metiers]]; Rechnen mit Maschinen - de Beauclair; [[https://archive.org/details/computingmechani00anto|Computing Mechanisms and Linkages - Antonin Svoboda]], to name just a few.

Changed lines 500-502 from:
ANCMECA Library - quite a comprehensive collection of digitised documents and references from the history of calculation technology]]
to:
ANCMECA Library - quite a comprehensive collection of digitised documents and references from the history of calculation technology.
  • https://archive.org
allows an Internet Archive search for manuals and other digitised documents relevant to the history of calculation technology.
13 January 2016 by 210.84.4.97 -
Changed lines 67-72 from:
  • [https://www.zotero.org/ancmeca/items|ANCMECA Library - quite a comprehensive collection of digitised documents and references from the history of calculation technology]]
to:
  • ANCMECA Library - quite a comprehensive collection of digitised documents and references from the history of calculation technology
Deleted lines 461-464:
  • https://www.zotero.org/ancmeca/items
ANCMECA Library - quite a comprehensive collection of digitised documents and references from the history of calculation technology]]
Added lines 493-497:
  • https://www.zotero.org/ancmeca/items
ANCMECA Library - quite a comprehensive collection of digitised documents and references from the history of calculation technology]]
13 January 2016 by 210.84.4.97 -
Changed lines 67-69 from:
to:
  • [https://www.zotero.org/ancmeca/items|ANCMECA Library - quite a comprehensive collection of digitised documents and references from the history of calculation technology]]
Added lines 461-464:
  • https://www.zotero.org/ancmeca/items
ANCMECA Library - quite a comprehensive collection of digitised documents and references from the history of calculation technology]]
03 November 2014 by 203.206.47.149 -
03 November 2014 by 203.206.47.149 -
30 October 2014 by 121.219.109.28 -
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  • ARC Regulas de Calculo Foro
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  • ARC Regulas de Calculo Foro
30 October 2014 by 121.219.109.28 -
Added line 290:
  • ARC Regulas de Calculo Foro
22 July 2014 by Jim Falk -
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  • Auction Team Breker (Köln (Godorf), Germany) run a scientific instruments speciality auction several times per year and occasionally also list items on ebay.
to:
  • Auction Team Breker (Köln (Godorf), Germany) run a scientific instruments speciality auction several times per year and occasionally also list items on ebay. Be aware that when they offer a calculator for sale they frequently attribute to it a much earlier date (for example, the date of the first patent) rather than the actual date of production.
22 July 2014 by Jim Falk -
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The Heinz Nixdorf MuseumsForum Claims to be the world’s biggest computer museum, situated in Paderborn, Germany.
to:
The Heinz Nixdorf Museums Forum Claims to be the world’s biggest computer museum, situated in Paderborn, Germany.
22 July 2014 by Jim Falk -
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  • The History of Computing Project A collaborative history of computing. Principal Editor Cornelis Robat.
to:
  • The History of Computing Project A collaborative history of computing published by The History of Computing Foundation; 4021 VD 14; The Netherlands, Principal Editor Cornelis Robat.
22 July 2014 by Jim Falk -
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  • The History of Computing Project A collaborative history of computing.
to:
  • The History of Computing Project A collaborative history of computing. Principal Editor Cornelis Robat.
22 July 2014 by Jim Falk -
Added lines 224-225:
  • The History of Computing Project A collaborative history of computing.
17 July 2014 by Jim Falk -
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  • Blaise Pascal, “Lettre dédicatoire à Monseigneur le Chancelier sur le sujet de la machine nouvellement inventée par le Sieur B.P. pour faire toutes sortes d’opérations d’arithmétique, par un mouvement reglé, sans plume ny jettons avec un advis necessaire à ceux qui auront curiosité de voir ladite machine, & de s’en servir”, 1645.
to:
  • Blaise Pascal, “Lettre dédicatoire à Monseigneur le Chancelier sur le sujet de la machine nouvellement inventée par le Sieur B.P. pour faire toutes sortes d’opérations d’arithmétique, par un mouvement reglé, sans plume ny jettons avec un avis nécessaire à ceux qui auront curiosité de voir ladite machine, & de s’en servir”, 1645.
17 July 2014 by Jim Falk -
Changed line 16 from:
  • Blaise Pascal, “Lettre dédicatoire à Monseigneur le Chancelier sur le sujet de la machine nouvellement inventée par le Sieur B.P. pour faire toutes sortes d’opérations d’arithmétique, par un mouvement reglé, sans plume ny jettons avec un advis necessaire à ceux qui auront curiosité de voir ladite machine, & de s’en servir”, 1645.
to:
  • Blaise Pascal, “Lettre dédicatoire à Monseigneur le Chancelier sur le sujet de la machine nouvellement inventée par le Sieur B.P. pour faire toutes sortes d’opérations d’arithmétique, par un mouvement reglé, sans plume ny jettons avec un advis necessaire à ceux qui auront curiosité de voir ladite machine, & de s’en servir”, 1645.
11 July 2014 by Jim Falk -
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  • Arithmetical Machines & Instruments / 19th century Valéry Monnier’s other set of images and details of some of the most rare and precious calculating machines of the C19 (in French and English).
to:
  • Arithmetic Machines|Arithmetical Machines & Instruments / 19th century Valéry Monnier’s other set of images and details of some of the most rare and precious calculating machines of the C19 (in French and English).
27 June 2014 by Jim Falk -
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to:
  • Worthpoint Yet another database of prices realised at auction. Prices are generally only available if you subscribe.
Changed lines 1062-1064 from:

(:ifend:)

to:
  • http://www.worthpoint.com/
Worthpoint.com. Yet another database of prices realised at auction. Prices are generally only available if you subscribe.

(:ifend:)

27 June 2014 by Jim Falk -
Added lines 367-373:
  • Kovels database of prices realised at auction Requires the establishing of an account to gain access to prices.
  • icollector.com Database of prices realised at auction.
  • invaluable.com Database of prices realised at auction.
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(:ifend:)

to:

(:ifend:)

27 June 2014 by Jim Falk -
27 June 2014 by Jim Falk -
Added lines 1040-1053:
  • http://www.kovels.com/2008112713/Price-Guide/collectors-price-guide.html?id=13
Kovels database of prices realised at auction. Requires the establishing of an account to gain access to prices.
  • http://www.icollector.com/search.aspx
icollector.com database of prices realised at auction.
  • http://www.invaluable.com/catalog/advancedSearch.cfm?srchScope=p
invaluable.com database of prices realised at auction
22 June 2014 by Jim Falk -
Added lines 108-109:
  • HP Computer Museum Another set of comprehensive information on HP calculators including free downloads of reference material.
22 June 2014 by Jim Falk -
Added lines 106-107:
  • The Museum of HP Caclulators Comprehensive information on HP calculators including serial number lists.
21 June 2014 by Jim Falk -
Added lines 102-103:
  • Michael Hancock’s Burroughs Calculator Website Comprehensive survey of Burroughs calculators including listings by serial number and age, and much more.
06 June 2014 by Jim Falk -
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to:
  • Thiago Bouzan’s Pascaline replicas constructed from Leggo - latest model, or prior model
Added lines 829-833:
  • http://webdocs.cs.ualberta.ca/~smillie/Calculators/Calculators.htm
Thiago Bouzan’s Pascaline replicas constructed from Leggo.
  • https://www.youtube.com/watch?v=Fv1IawE3Hw4 (latest model), or https://www.youtube.com/watch?v=olfNFXJEZOA (prior model)
16 May 2014 by Jim Falk -
Added lines 114-115:
  • The mechanisms of Tchebyshev devoted to preserving the full set of inventions of the great Russian mathematician Pafnuty Lvovich Tchebyshev (1821–1894).
17 April 2014 by 121.220.83.94 -
Changed lines 65-69 from:
  • Detlef Zerfowski|Internet pages about mechanical calculating devices and machines in German and English, and with a new book Our World-wide Knowledge on Calculating Machines, Slide Rules and Calculating Tools. An Approach for a Comprehensive Overview of the Knowledge from Past until Present.
to:
  • Detlef Zerfowski - Internet pages about mechanical calculating devices and machines in German and English, and with a new book Our World-wide Knowledge on Calculating Machines, Slide Rules and Calculating Tools. An Approach for a Comprehensive Overview of the Knowledge from Past until Present.
Added lines 464-466:
  • https://www.zerfowski.com/rechengeraete.php
Detlef Zerfowski - Internet pages about mechanical calculating devices and machines (in German and English), and with a new book Our World-wide Knowledge on Calculating Machines, Slide Rules and Calculating Tools. An Approach for a Comprehensive Overview of the Knowledge from Past until Present. at https://www.zerfowski.com/rechengeraete.php#book_Ad
17 April 2014 by 121.220.83.94 -
Added lines 64-66:
  • Detlef Zerfowski|Internet pages about mechanical calculating devices and machines in German and English, and with a new book Our World-wide Knowledge on Calculating Machines, Slide Rules and Calculating Tools. An Approach for a Comprehensive Overview of the Knowledge from Past until Present.
17 April 2014 by 121.220.83.94 -
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  • Keith Smillie’s From Abacus to Silicon Chip
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  • Calculant - well you must know about that, or you wouldn’t be here…
to:
  • things-that-count.net - well you must know about that, or you wouldn’t be here…
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  • http://webdocs.cs.ualberta.ca/~smillie/Calculators/Calculators.htm
Keith Smillie’s From Abacus to Silicon Chip
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  • http://things-that-count.com
to:
  • http://things-that-count.net
17 April 2014 by 124.170.39.56 -
Changed lines 22-24 from:
  • http://www.bibnum.education.fr/calcul-et-informatiques/calcul Classic scientific articles from before 1940 relevant to calculation, mathematics, and information science. Includes original documents from Pascale and Leibniz.
to:
  • Bibnum (Centre de ressources et d’information multimedia pour l’enseignement supérieur) Classic scientific articles from before 1940 relevant to calculation, mathematics, and information science. Includes original documents from Pascale and Leibniz.
Changed line 379 from:
  • http://www.bibnum.education.fr/recherche/resultat/liste/
to:
  • http://www.bibnum.education.fr/calcul-et-informatiques/calcul
17 April 2014 by 124.170.39.56 -
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  • Bibnum Classic scientific articles from before 1940 relevant to calculation, mathematics, and information science. Includes original documents from Pascale and Leibniz.
to:
  • http://www.bibnum.education.fr/calcul-et-informatiques/calcul Classic scientific articles from before 1940 relevant to calculation, mathematics, and information science. Includes original documents from Pascale and Leibniz.
15 April 2014 by 124.170.39.56 -
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  • The Heinz Nixdorf MuseumsForum Claims to be the world’s biggest computer museum, situated in Paderborn, Germany.
to:
  • The Heinz Nixdorf MuseumsForum Claims to be the world’s biggest computer museum, situated in Paderborn, Germany.
  • The Smithsonian Museums have now placed many of the antique calculators in their collections on view. They may be identified by searching for “calculator” in the search box.
15 April 2014 by 124.170.39.56 -
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  • Histoire de l’Informatique Wide-ranging gallery of calculators and associated information. [in French] 
to:
  • Histoire de l’Informatique Wide-ranging gallery of calculators and associated information. [in French]
  • History of Computers hardware, software, internet… A very beautifully developed historical site by Georgi Dalakov in part structured under historical themes and with in that, leading inventors and their inventions, with many pictures of wonderful rare calculator antiques and related ephemerae.
Changed lines 204-205 from:
  • History of Mechanical Calculators Part of James Redin’s Xnumber World of Personal Caclulators site. Some useful links to documents (also listed in other sites.)
to:
  • History of Mechanical Calculators Part of James Redin’s Xnumber World of Personal Caculators site. Some useful links to documents (also listed in other sites.) Also a nice listing of some of the better known calculator collectors.
Added lines 677-680:
The Smithsonian Institute. Has now placed its calculator collection on-line. Specific items or “calculator” are retrievable through its on-line search window.
  • http://www.si.edu/Museums
12 April 2014 by 203.206.103.138 -
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  • Mechanische Rechenhilfsmittel und -maschinen by Detlef Zerfowski
to:
  • Mechanische Rechenhilfsmittel und -maschinen by Detlef Zerfowski including an extensive list of patents and also calculator sites
Changed line 452 from:
Mechanische Rechenhilfsmittel und -maschinen by Detlef Zerfowski
to:
Mechanische Rechenhilfsmittel und -maschinen by Detlef Zerfowski including an extensive list of patents and also calculator sites
12 April 2014 by 203.206.103.138 -
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to:
  • Mechanische Rechenhilfsmittel und -maschinen by Detlef Zerfowski
Added lines 449-453:
  • https://www.zerfowski.com/rechengeraete.php
Mechanische Rechenhilfsmittel und -maschinen by Detlef Zerfowski
12 April 2014 by 203.206.103.138 -
12 April 2014 by 203.206.103.138 -
12 April 2014 by 203.206.103.138 -
12 April 2014 by 203.206.103.138 -
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Associations of Calculator Collectors and Collector Mail Lists

to:

Associations of Calculator Collectors, Collectors Lists, and Collector Mail Lists

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  • Mechanical Calculator Collectors in the Net, list by James Redin
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Associations of Calculator Collectors and Collector Mail Lists

to:

Associations of Calculator Collectors, Collectors Lists, and Collector Mail Lists

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  • http://www.xnumber.com/xnumber/collectors_mech.htm
Mechanical Calculator Collectors in the Net listing by James Redin.
12 April 2014 by 203.206.103.138 -
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  • History of the Facit Calculator by Christofer Nöring
to:
  • History of the Facit Calculator by Christofer Nöring
12 April 2014 by 203.206.103.138 -
Changed lines 100-103 from:
  • Facit Page by James Redin including a comprehensive list of models of the Facit calculators.
  • History of the Facit Calculator by Christofer Nöring
to:
  • Facit Page by James Redin including a comprehensive list of models of the Facit calculators.
  • History of the Facit Calculator by Christofer Nöring
Changed lines 522-523 from:
  • http://www.dotpoint.com/xnumber/cmisc_facit_page.htm
to:
  • http://www.xnumber.com/xnumber/cmisc_facit_page.htm
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  • http://www.dotpoint.com/xnumber/facit_history.htm
to:
  • http://www.xnumber.com/xnumber/facit_history.htm
31 March 2014 by 1800 -
Changed lines 914-916 from:
  • http://calculant.metastudies.net
Calculant - well you must know about that, or you wouldn’t be here…
to:
  • http://things-that-count.com
Things that Count - well you must know about that, or you wouldn’t be here…
31 March 2014 by 1800 -
Deleted line 60:
  • Interstices - Machines à calculer
31 March 2014 by 1800 -
Changed lines 59-61 from:
  • François Babillot’s calculator website
to:
  • François Babillot’s calculator website
  • Interstices - Machines à calculer
31 March 2014 by 1800 -
Changed line 33 from:
  • Histoire de l’Informatique Wide-ranging gallery of calculators and associated information. [in French] 
to:
  • Histoire de l’Informatique Wide-ranging gallery of calculators and associated information. [in French] 
31 March 2014 by 1800 -
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  • Online documents A broad listing of useful links to documents covering the history of calculators.
to:
  • Online documents A broad listing of useful links to documents covering the history of calculators.
26 March 2014 by 1800 -
Changed line 385 from:
Rechenmaschinen-Illustrated: The most comprehensive listing of details about early calculating machines on the web. Based around the classic study Ernst Martin, “Die Rechenmaschinen”, 1925, and translated into English as http://www.rechenmaschinen-illustrated.com/
to:
Rechenmaschinen-Illustrated: The most comprehensive listing of details about early calculating machines on the web. Based around the classic study Ernst Martin, Die Rechenmaschinen, 1925, and translated into English as http://www.rechenmaschinen-illustrated.com/
26 March 2014 by 1800 -
Changed line 31 from:
  • Rechenmaschinen-Illustrated: The most comprehensive listing of details about early calculating machines on the web. Based around the classic study Ernst Martin, “Die Rechenmaschinen”, 1925, and translated into English as Ernst Martin, “The Calculating Machines”, MIT Press and The Charles Babbage Institute, USA, “History of Computing” series, 1992.
to:
  • Rechenmaschinen-Illustrated: The most comprehensive listing of details about early calculating machines on the web. Based around the classic study Ernst Martin, Die Rechenmaschinen, 1925, and translated into English as Ernst Martin, “The Calculating Machines”, MIT Press and The Charles Babbage Institute, USA, “History of Computing” series, 1992.
20 March 2014 by 1800 -
26 January 2014 by 203.166.232.87 -
Changed line 37 from:
  • John Wolff’s Web Museum Calculating Machines A wonderfully detailed site by an expert collector with great mechanical insight into the workings of the extensive set of calculators listed.
to:
  • John Wolff’s Web Museum Calculating Machines A wonderfully detailed site by an expert collector with great mechanical insight into the workings of the extensive set of calculators listed.
26 January 2014 by 203.166.232.87 -
Changed line 37 from:
  • John Wolff’s Web Museum Calculating Machines A wonderfully detailed site by an expert collector with great mechanical insight into the workings of the extensive set of calculators listed.
to:
  • John Wolff’s Web Museum Calculating Machines A wonderfully detailed site by an expert collector with great mechanical insight into the workings of the extensive set of calculators listed.
26 January 2014 by 203.166.232.87 -
Changed line 37 from:
  • John Wolff’s Web Museum Calculating Machines A wonderfully detailed site by an expert collector with great mechanical insight into the workings of the extensive set of calculators listed.
to:
  • John Wolff’s Web Museum Calculating Machines A wonderfully detailed site by an expert collector with great mechanical insight into the workings of the extensive set of calculators listed.
09 November 2013 by 124.148.184.56 -
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  • Gerald Saudan from Switzerland’s MADAS specialist site.
16 August 2013 by 203.5.69.180 -
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Índice de las Máquinas de Calcular a comprehensive survey site by Josep Balsach Peig, in Spanish.
to:
Índice de las Máquinas de Calcular a comprehensive survey site by Josep Balsach Peig, in Spanish.
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(:ifend:)

to:

(:ifend:)

15 August 2013 by 203.166.250.70 -
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Robert Manley’s Slide Rule Site
to:
Robert Manley’s Slide Rule Site
14 August 2013 by 203.166.250.70 -
Changed line 31 from:
  • Rechenmaschinen-Illustrated: The most comprehensive listing of details about early calculating machines on the web. Based around the classic study Ernst Martin, “Die Rechenmaschinen”, 1925, and translated into English as Ernst Martin, “The Calculating Machines”, MIT Press and The Charles Babbage Institute, USA, “History of Computing” series, 1992.
to:
  • Rechenmaschinen-Illustrated: The most comprehensive listing of details about early calculating machines on the web. Based around the classic study Ernst Martin, “Die Rechenmaschinen”, 1925, and translated into English as Ernst Martin, “The Calculating Machines”, MIT Press and The Charles Babbage Institute, USA, “History of Computing” series, 1992.
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  • Robert Manley’s Slide Rule Site
to:
  • Robert Manley’s Slide Rule Site
14 August 2013 by 203.166.250.70 -
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Swedish Typewriters Site - listing of antique office calculators From the home page select the “The Collection” in the navigation bar on the left, and then scroll down to the RÄKNEMASKINER / CALCULATORS section.
to:
Swedish Typewriters Site - listing of antique office calculators From the home page select the “The Collection” in the navigation bar on the left, and then scroll down to the RäKNEMASKINER / CALCULATORS section.
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Beiträge zur Geschichte des mechanischen Rechnens: Contributions to the History of Mechanical Calculation Good list of publications, books and historical articles dealing in particular with the history and internal workings of calculating machines.
to:
Beiträge zur Geschichte des mechanischen Rechnens: Contributions to the History of Mechanical Calculation Good list of publications, books and historical articles dealing in particular with the history and internal workings of calculating machines.
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(:ifend:)

to:

(:ifend:)

14 August 2013 by 203.166.250.70 -
14 August 2013 by 203.166.250.70 -
Changed lines 356-359 from:
  • Blaise Pascal, http://www.bibnum.education.fr/calculinformatique/calcul/la-pascaline-la-«%C2%A0machine-qui-relève-du-défaut-de-la-mémoire%C2%A0»
“Lettre dédicatoire à Monseigneur le Chancelier sur le sujet de la machine nouvellement inventée par le Sieur B.P. pour faire toutes sortes d’opérations d’arithmétique, par un mouvement reglé, sans plume ny jettons avec un advis necessaire à ceux qui auront curiosité de voir ladite machine, & de s’en servir”, 1645.
to:
  • Blaise Pascal, http://www.bibnum.education.fr/calculinformatique/calcul/la-pascaline-la-«%C2%A0machine-qui-relève-du-défaut-de-la-mémoire%C2%A0»
“Lettre dédicatoire à Monseigneur le Chancelier sur le sujet de la machine nouvellement inventée par le Sieur B.P. pour faire toutes sortes d’opérations d’arithmétique, par un mouvement reglé, sans plume ny jettons avec un advis necessaire à ceux qui auront curiosité de voir ladite machine, & de s’en servir”, 1645.
Changed lines 393-394 from:
Büromaschinen Lexikon Published by Goeller-Verlag the annual office machines dictionary provided a comprehensive illustrated overview of common office equipment for the respective years. This site provides collectors with the information on calculators from that website.[in German]
to:
Büromaschinen Lexikon Published by Goeller-Verlag the annual office machines dictionary provided a comprehensive illustrated overview of common office equipment for the respective years. This site provides collectors with the information on calculators from that website.[in German]
Changed lines 425-426 from:
Mechanische Rechenhilfsmittel Mechanical Calculating Devices by Wolf G. Blümich (in German.)
to:
Mechanische Rechenhilfsmittel Mechanical Calculating Devices by Wolf G. Blümich (in German.)
Changed lines 437-438 from:
Índice de las Máquinas de Calcular a comprehensive survey site by Josep Balsach Peig, in Spanish.
to:
Índice de las Máquinas de Calcular a comprehensive survey site by Josep Balsach Peig, in Spanish.
Changed lines 441-443 from:
François Babillot’s calculator website
to:
François Babillot’s calculator website
Changed lines 483-484 from:
Valéry Monnier’s extraordinary and expert website on the Thomas de Colmar Arithmometer
to:
Valéry Monnier’s extraordinary and expert website on the Thomas de Colmar Arithmometer
Changed lines 487-488 from:
Arithmetical Machines & Instruments / 19th century Valéry Monnier’s other set of images and details of some of the most rare and precious calculating machines of the C19 (in French and English).
to:
Arithmetical Machines & Instruments / 19th century Valéry Monnier’s other set of images and details of some of the most rare and precious calculating machines of the C19 (in French and English).
Changed lines 499-500 from:
Le cabinet de curiosités d’Yves Serra A nice presentation of information on early calculators (with particular attention to those of Pascale and Leibnitz).
to:
Le cabinet de curiosités d’Yves Serra A nice presentation of information on early calculators (with particular attention to those of Pascale and Leibnitz).
Changed lines 525-526 from:
History of the Facit Calculator by Christofer Nöring
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History of the Facit Calculator by Christofer Nöring
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Anhang 2.1: Bedienungs- und Serviceanleitungen für Tabellen, Rechenschieber, -scheiben, -walzen und -skalen Instructions for many slide rules.
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Anhang 2.1: Bedienungs- und Serviceanleitungen für Tabellen, Rechenschieber, -scheiben, -walzen und -skalen Instructions for many slide rules.
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linealis.org “Un site consacré aux instruments du calcul manuel tels que les règles et cercles à calcul, les curseurs, abaques, machines à calculer tenant dans la main, planimètres et intégrateurs.”
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linealis.org “Un site consacré aux instruments du calcul manuel tels que les règles et cercles à calcul, les curseurs, abaques, machines à calculer tenant dans la main, planimètres et intégrateurs.”
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Insterstices Machines à calculer l’association pour le musée international du calcul, de l’informatique et de l’automatique de Valbonne Sophia Antipolis (Amisa ) présente quelques pièces de son patrimoine.
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Insterstices Machines à calculer l’association pour le musée international du calcul, de l’informatique et de l’automatique de Valbonne Sophia Antipolis (Amisa ) présente quelques pièces de son patrimoine.
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Aus der Rechenmaschinen-Werkstatt von D. Bölter
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Aus der Rechenmaschinen-Werkstatt von D. Bölter
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François Babillot’s Database of Antique Calculators
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François Babillot’s Database of Antique Calculators
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ANCMECA - machine à écrire mécanique et à la machine à calculer mécanique in multiple languages.
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ANCMECA - machine à écrire mécanique et à la machine à calculer mécanique in multiple languages.
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IFHB Internationales Forum Historische Bürowelt e.V. with also an extensive set of links to other relevant sites.
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IFHB Internationales Forum Historische Bürowelt e.V. with also an extensive set of links to other relevant sites.
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Auction Team Breker (Köln (Godorf), Germany) run a scientific instruments speciality auction several times per year and occasionally also list items on ebay.
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Auction Team Breker (Köln (Godorf), Germany) run a scientific instruments speciality auction several times per year and occasionally also list items on ebay.
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  • Webster Signature Database Provides an excellent starting point for searching for details of past makers of scientific instruments.
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  • Webster Signature Database Provides an excellent starting point for searching for details of past makers of scientific instruments.

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This is a collection of electronic resources (including selected links to other relevant websites) which form part of the background to the collected objects and associated analysis.

Early books

  • John Napier, http://metastudies.net/pmwiki/uploads/Books/Rabdologiae_seu_numerationis_per_virgula.pdf
Rabdologiae seu numerationis per vigula, 1628 (first published 1617).
  • Blaise Pascal, http://www.bibnum.education.fr/calculinformatique/calcul/la-pascaline-la-«%C2%A0machine-qui-relève-du-défaut-de-la-mémoire%C2%A0»
“Lettre dédicatoire à Monseigneur le Chancelier sur le sujet de la machine nouvellement inventée par le Sieur B.P. pour faire toutes sortes d’opérations d’arithmétique, par un mouvement reglé, sans plume ny jettons avec un advis necessaire à ceux qui auront curiosité de voir ladite machine, & de s’en servir”, 1645.
  • Jacob Leupold, http://metastudies.net/pmwiki/uploads/Books/TheatrumArithmeticoGeometricum.pdf
Theatrum Arithmetico-Geometricum das ist: Schau-Platz der Rechen- und Mess-Kunst. . . . Christoph Zunkel, Leipzig, 1774 (first edition 1727). The best illustrated book on calculation and measurement published during the eighteenth century.
  • http://ebooks.library.cornell.edu/m/math/browse/title/a.php
Cornell University Library Historical Math Monographs. A wonderful collection of early mathematics books generally able to be read on line.
  • http://www.bibnum.education.fr/recherche/resultat/liste/
Bibnum Classic scientific articles from before 1940 relevant to calculation, mathematics, and information science. Includes original documents from Pascale and Leibniz.

Key websites

Survey websites

  • http://www.rechnerlexikon.de/en/artikel/Main_Page
Rechnerlexicon The leading and most comprehensive survey site for calculator specialists and collectors with information about almost every known mechanical calculator and a database of more than 23750 patents.
  • http://www.rechenmaschinen-illustrated.com/
Rechenmaschinen-Illustrated: The most comprehensive listing of details about early calculating machines on the web. Based around the classic study Ernst Martin, “Die Rechenmaschinen”, 1925, and translated into English as http://www.rechenmaschinen-illustrated.com/
Ernst Martin, “The Calculating Machines”, MIT Press and The Charles Babbage Institute, USA, “History of Computing” series, 1992.
  • http://www.histoire-informatique.org/idx/
Histoire de l’Informatique Wide-ranging gallery of calculators and associated information. [in French]
  • http://www.rechenkasten.de/BueromaschinenLexikon/index.html
Büromaschinen Lexikon Published by Goeller-Verlag the annual office machines dictionary provided a comprehensive illustrated overview of common office equipment for the respective years. This site provides collectors with the information on calculators from that website.[in German]
  • http://home.vicnet.net.au/~wolff/calculators/
John Wolff’s Web Museum Calculating Machines A wonderfully detailed site by an expert collector with great mechanical insight into the workings of the extensive set of calculators listed.
  • http://w1.131.telia.com/~u13101111/typewriters.html
Swedish Typewriters Site - listing of antique office calculators From the home page select the “The Collection” in the navigation bar on the left, and then scroll down to the RÄKNEMASKINER / CALCULATORS section.
  • http://www.ph-ludwigsburg.de/fileadmin/subsites/2e-imix-t-01/user_files/mmm/mmm_online/
Mathematisches Maschinenemuseum Good historical summaries and a nice set of videos of machines in action.
  • http://www.mechrech.info
Beiträge zur Geschichte des mechanischen Rechnens: Contributions to the History of Mechanical Calculation Good list of publications, books and historical articles dealing in particular with the history and internal workings of calculating machines.
  • http://ed-thelen.org/comp-hist/on-line-docs.html
Online documents A broad listing of useful links to documents covering the history of calculators.
  • http://calcollect.free.fr/machines/macha.htm
Michel Bardel’s list Tentative list of all existing mechanical machines since 1820, together with FAQs and serial numbers. An invaluable reference source.
  • http://www.thocp.net/timeline/1620.htm
History of Computer Antiquity
  • http://bluemich.net/rechner/
Mechanische Rechenhilfsmittel Mechanical Calculating Devices by Wolf G. Blümich (in German.)
  • http://www.madeasy.de/2/mathe.htm
Mathematics site by Reiner Hoffmann in German.
  • http://www.opticaliamuseum.com/drawing/
Opticalia Museum - museum menu is working, but the catalogue menu was still under construction in May 2012.
  • http://www.mipaginapersonal.movistar.es/web3/calculating/LLIBRE%20JPG/INDEX%20SOLO.htm#alfa
Índice de las Máquinas de Calcular a comprehensive survey site by Josep Balsach Peig, in Spanish.
  • http://calmeca.free.fr/calculmecanique_php/index_calmeca.php?lang=eng
François Babillot’s calculator website

Manuals and Instructions

  • http://www.rechenwerkzeug.de/default.htm
Calculator Manuals from Rechenwerkzeug.de
  • http://www.nicolamarras.it/calcolatoria/downloads_en.html
Calcolatoria downloads
  • http://www.mathsinstruments.me.uk/page62.html
Mathematical Instruments Catalogues and Brochures
  • http://www.prehistoriadelainformatica.com/manuales-instructions/
Prehistoria de la Informatica Office Collectibles
  • http://users.lewiston.com/ejorgens/office/miscellaneous/miscellaneous.html
Miscellaneous Manuals Pay site, but if you can’t get these elsewhere…
  • http://officemachinemanuals.com/catalog/miscellaneous.htm
Office Machines America Pay site.
  • http://www.mechanicalculator.com/manuals/
Collection of Kees Nagtegaal useful set of manuals for slide rules and the more common calculators.
  • http://http://www.mccoys-kecatalogs.com/KEManuals/manuals.htm
Keuffel & Esser Slide Rule Manuals and Catalogues site by Clark McCoy.

Specialist websites

  • http://www.arithmometre.org
Valéry Monnier’s extraordinary and expert website on the Thomas de Colmar Arithmometer
  • http://www.ami19.org/Arithmetic Machines
Arithmetical Machines & Instruments / 19th century Valéry Monnier’s other set of images and details of some of the most rare and precious calculating machines of the C19 (in French and English).
  • http://mortati.com/glusker/elecmech/refslinks.htm
Electromechanical calculating machines from the 1960’s includes extensive lists of other relevant links and books.
  • http://ajmdeman.awardspace.info/
Original documents on the History of Calculators
  • http://www.yvesserra.fr/
Le cabinet de curiosités d’Yves Serra A nice presentation of information on early calculators (with particular attention to those of Pascale and Leibnitz).
  • http://www2.cruzio.com/~vagabond/ComptHome.html
Comptometer Website Very authoritative website on the Felt & Tarrant Comptometer.
  • http://www.vcalc.net/
The Calculator Reference Comprehensive coverage of http://www.vcalc.net/cu.htm
Curta, http://www.vcalc.net/hp.htm
Hewlett Packard, and http://www.vcalc.net/ti.htm
Texas Instrument calculators. Includes links to other sites and manuals.
  • http://home.comcast.net/~wtodhner/calcs.html
William Ohdner’s site commemorating the Ohdner calculator
  • http://www.dotpoint.com/xnumber/cmisc_facit_page.htm
Facit Page by James Redin including a comprehensive list of models of the Facit calculators.
  • http://www.dotpoint.com/xnumber/facit_history.htm
History of the Facit Calculator by Christofer Nöring
  • http://www.taswegian.com/MOSCOW/soviet.html
Museum of Soviet Calculators
  • http://rk86.com/frolov/calcolle.htm
Soviet Calculators Collection
  • http://officemachinemanuals.com/
Office Machines Americana including a useful set of manuals.
  • http://www.calculators.de/
Museum of Pocket Calculating Devices mainly focussing on electronic pocket calculators.
  • https://plus.google.com/photos/103618537816338035609/albums?banner=pwa
John Huey’s Picasawebalbum with illustrations of a wide range of Addiator Troncet calculators.

Gunter Scales & Sectors

  • http://www.rainerstumpe.de/HTML/erl01.html
Gunter Works All about Gunter Scales and Sectors and how to use them (mostly in German but also in part in English)

Slide Rules

  • http://sliderulemuseum.com/
International Slide Rule Museum
  • http://sliderulemuseum.com/HSRC_Menu.htm
Herman van Herwijnen’s Slide Rule Catalogue “LITE”
  • http://www.hh.schule.de/metalltechnik-didaktik/museum/rechenschieber/scheiben/rs9.htm
Rechenscheiber im Online-Museum
  • http://www.sliderule.ca/
Eric’s Slide Rule Site
  • http://sliderule.ozmanor.com/index.html
Greg’s slide rules
  • http://www.sliderules.info
Robert Manley’s Slide Rule Site
  • http://bluemich.net/rechner/rma21.htm#14
Anhang 2.1: Bedienungs- und Serviceanleitungen für Tabellen, Rechenschieber, -scheiben, -walzen und -skalen Instructions for many slide rules.
  • http://oughtred.org/
The Oughtred Society
  • http://sliderules.lovett.com/cookiedev/extendedlitsearch.html
Scanned back issues of the Oughtred Society Journal and other publications An essential reference site for enthusiasts. Access to the last five years publications requires a password and username to be provided by the Society.
  • http://www.rekeninstrumenten.nl/index.html
Dutch Circle for Historical Calculating Instruments
  • http://www.hpmuseum.org/sliderul.htm
Museum of HP Calculators History of Slide Rules
  • http://www.xnumber.com/xnumber/hp.htm
The Death of the Slide Rule by James Redin
  • http://www.sliderule.it/
Collection of Giovanni Breda
  • http://sliderulemuseum.com/SR_Links.htm
International Slide Rule Museum A survey site focussing primarily on slide rules with a wealth of links and other material including other related sites, and manuals and related material. See also its helpful and comprehensive http://sliderulemuseum.com/SR_Links.htm
links page.
  • http://www.svpal.org/~dickel/OK/OtisKing.html
Otis King’s Patent Calculator Specialist site focussing on the Otis King cylindrical sliderule.
  • http://linealis.org/
linealis.org “Un site consacré aux instruments du calcul manuel tels que les règles et cercles à calcul, les curseurs, abaques, machines à calculer tenant dans la main, planimètres et intégrateurs.”
  • http://www.sphere.bc.ca/test/2archives.html
The Slide Rule Universe by Sphere research corporation.

Measuring & Drawing Instruments

  • http://collectingme.com/measuring/
CollectingMe.com Some nice examples of various antique measuring instruments.
  • http://www.petergh.f2s.com/instruments2.html
Peter Giringhelli’s collection of measuring and drawing instruments, and rules
  • http://geometricum.jimdo.com/collection/scientific-instruments/
Geometricum Markus Geissbuehler presents a systematic presentation of scientific instruments, in particular astronomical, drawing instruments and surveying instruments from Roman to C19
  • http://www.mathsinstruments.me.uk/page6.html
Mathematical Instruments: A Private Collection

Museums

  • http://www.arithmeum.uni-bonn.de/
The Arithmeum, Bonn A specialist museum focussed on the history of calculation, housing many rare and precious antique calculators.
  • http://www.sciencemuseum.org.uk/onlinestuff/museum_objects/mathematics.aspx?page=1
Science Museum (UK)
  • http://en.hnf.de/default.asp
The Heinz Nixdorf MuseumsForum Claims to be the world’s biggest computer museum, situated in Paderborn, Germany.
  • http://www.arithmometre.org/Musees/PageMusees.html
List of museums at www.arithmometer.org
  • http://www.landesmuseum-stuttgart.de/
Stuttgart Landesmuseum
  • http://www.ph-ludwigsburg.de/fileadmin/subsites/2e-imix-t-01/user_files/mmm/mmm_online/
Mathematische Maschinenmuseum. Collection of the Hochschule in Ludwigsburg (Germany)
  • http://www.uni-greifswald.de/~wwwmathe/RTS/node2.html
University of Greifswald An extensive mechanical calculator collection.
  • http://http://www.radiomuseum.org/museum/d/computer-museum-der-rwth-aachen/.html
Computer Museum Aachen Primarily electronic computers.
  • http://www.compustory.com/
The Museum of Modern Human Progress (The American Computer Museum)
  • http://www.computermuseum.nl/collecti.html
Stichting Computermuseum (Netherlands)
  • http://www.computerhistory.org
The Computer History Museum (Mountain View, California, USA)
  • http://interstices.info/jcms/c_15272/machines-a-calculer
Insterstices Machines à calculer l’association pour le musée international du calcul, de l’informatique et de l’automatique de Valbonne Sophia Antipolis (Amisa ) présente quelques pièces de son patrimoine.

Other Useful Sites

  • http://www.xnumber.com/xnumber/
History of Mechanical Calculators Part of James Redin’s Xnumber World of Personal Caclulators site. Some useful links to documents (also listed in other sites.)
  • http://www.vintagecalculators.com/index.html
Vintage Calculators Website A significant number of photos of the more widely collected old mechanical calculators, together with a survey of electrical and electronic machines.
  • http://www.crisvandevel.de/links.htm
Recommended links by Chris from Calclist
  • http://www.rechenwerkzeug.de/
rechenwerkzeug Reinhard Atzbach’s site with a very nice range of antique calculators generally in very nice condition, and an extensive listing of http://www.rechenwerkzeug.de/literat.htm
relevant literature (in German).
  • http://www.computissimo.ch/v-fran/calcul.htm
Calculatrice
  • http://www.earlyofficemuseum.com/calculating_machines.htm
The Early Office Museum
  • http://www.boelters.de/Rechenmaschinen/index.html
Aus der Rechenmaschinen-Werkstatt von D. Bölter
  • http://retrocalculators.com/default.aspx
Retrocalculators.com
  • http://www.rechenwerkzeug.de/default.htm
Mein Rechner tut’s auch ohne Strom…
  • http://www.rechenhilfsmittel.de/
Jan Meyer’s Geschichte der Rechenhilfsmittel
  • http://www.schneemann.de/index.htm
Schneemanns web page
  • http://www.w-hasselo.nl/mechn/index.php
Wim Hasselo’s comprehensive website
  • http://www.crisvandevel.de/
Cris Vandevel’s Antique Mechanical Four-species Calculators
  • http://calmeca.free.fr/calculmecanique_php/recherche_BDD/appel_resu_trouve_fichier.php?lang=eng
François Babillot’s Database of Antique Calculators
  • http://www.hpmuseum.org/prehp.htm
General calculator list from the “Museum of HP Calculators”
  • http://www.yesterdaysoffice.com/
Yesterday’s Office includes a forum for collectors of office antiques.
  • http://en.wikicollecting.org/calculators
WikiCollecting article on collecting calculators
  • http://www.gbreda.it/mechcalc/link.php
Giovanni Breda’s list of calculator collector and calculator & slide rule websites
  • http://pactu.com/
Philip A Cannon II’s site with a great deal of information cataloguing makers of instruments.
  • http://www.mwtca.org/tool-dealers.html
Mid-West Tool Collectors Association List of US antique tool dealers (not particularly calculators, but some relevant tools are accessible).
  • http://public.beuth-hochschule.de/~hamann/
Prof. Dr.-Ing. Christian-M. Hamann’s calculator site
  • http://www.mortati.com/glusker/elecmech/index.htm
Mark Glusker’s calculator site

Associations of Calculator Collectors and Collector Mail Lists

  • http://www.lsoft.com/scripts/wl.exe?SL1=CALCLIST-L&H=LISTSERV.TECHNION.AC.IL
CALCLIST a “must” subscription for the serious calculator collector.
  • http://groups.google.com/group/oldcalculatorforum
Old Calculator Forum e-mail list website mainly but not exclusively focussing on electric and early electronic calculators.
  • http://groups.yahoo.com/group/oldcalcs/
Old Electronic Calculators Yahoo group primarily for old electronic calculators.
  • http://tech.groups.yahoo.com/group/sliderule/messages
Yahoo slide-rule group. It is very active.
  • http://calcollect.free.fr/
ANCMECA - machine à écrire mécanique et à la machine à calculer mécanique in multiple languages.
  • http://ifhbev.de/index.php?id=5
IFHB Internationales Forum Historische Bürowelt e.V. with also an extensive set of links to other relevant sites.
  • http://www.webring.org/hub?ring=calculator
Webring of Calculator Collecting simply a web-ring for those interested.
  • http://www.datavis.ca/milestones/index.php?group=1600s
Milestones in the History of Thematic Cartography, Statistical Graphics, and Data Visualization a nice timeline with links.

Personal Collections

  • http://www.xnumber.com/xnumber/collectors_mech.htm
List of famous calculator collectors
  • http://www.xnumber.com/xnumber/
Another list of collectors
  • http://www.calculators.szrek.com/
Collection of Walter Szrek
  • http://www.jmgoldman.com/
Collection of Jay M. Goldman
  • http://www.nzeldes.com/HOC/HOC_Core.htm
Nathan’s Possibly Interesting History of Computing Website
  • http://www.hpricecpa.com/typewriterinfo9.html#acam
Collection of Herman Price
  • http://www.mechanicalculator.com/
Collection of Kees Nagtegaal
  • http://machineacalculer.free.fr/
Collection of Christophe Mery
  • http://www.calculi.nl/
Collection of Nico Baaijens
  • http://www.gateman.com/museum/c3.html
Topeka Computing Museum - “Ed’s 948 Collection”
  • http://www.peterkernwein.de/
Collection of Peter Kernwein
  • http://www.oldbits.com/collection.htm
“Old Bits” collection of Frank Salomon
  • http://www.thimet.de/CalcCollection/Contents.html
Calculator Collection of Anthon (Tony) Thimet
  • http://users.skynet.be/Fredscalculators/main.htm
Fred’s Mechanical Calculators Calculator collection of Fred Haegen
  • http://www.prehistoriadelainformatica.com/
Prehistoriadelainformatica High quality collection of office machines by Eduardo Guillem, in Spanish. Includes a fine selection of http://www.prehistoriadelainformatica.com/calculadoras-calculators/
antique mechanical calculators and a number of http://www.prehistoriadelainformatica.com/manuales-instructions/
manuals.
  • http://www.tcocd.de/index.shtml
Collection of Andreas Tabak
  • http://www.ulisse.bs.it/museo/index.htm
Museo didattico del Computer in Itallian
  • http://www.telmachines.nl
Telmachineverzameling Bob de Groot in Dutch
  • http://www.vierkantvoorwiskunde.nl/sikkepit/Rekenapparaten.html#terugvankleine
sikkepit Collection of Jantine Bloemhof (in Dutch) primarily aimed at demonstrating to school children different ways of doing calculations before the advent of electronic calculators.
  • http://calculant.metastudies.net
Calculant - well you must know about that, or you wouldn’t be here…

Online stores

Some useful stores of antique scientific instruments. (Calculant has no financial connection with any of these stores and cannot vouch for anything advertised. Caveat Emptor applies!)

  • http://www.fleaglass.com/
Fleaglass - a store front for a range of private sellers and dealers for various categories of antique scientific instruments including those for calculation
  • http://www.gemmary.com/
The Gemmary Antique Scientific Instruments and Old & Rare Books - both a dealer and store front for sales on consignment. Pricing tends to conform to the high quality of both the objects and the great care and expertise with which they are described, questions answered, and orders executed. The proprietor, Dr RC Blankenhorn is a well known expert in this field.
  • http://ebay.com
ebay US, http://ebay.com.au
ebay Australia, http://ebay.de
ebay Germany, http://ebay.at
ebay Austria, http://ebay.fr
ebay France, http://www.ebay.co.uk/
ebay UK, http://www.ebay.it/
ebay Italy and in general ebay around the world is probably the prime location for purchase of the more common (and some less common) antique calculation devices and books. Prices are very variable and if you are lucky ridiculously cheap (or conversely absurdly expensive). You are absolutely on your own in judging the merit of the items on offer. Dates and descriptions are often on a scale of misleading to fanciful. Things advertised as “rare” are more often than not not.
  • http://www.gilai.com/topcat_14/Scientific-Instruments
Gilai Collectibles.
  • http://www.etesseract.com/
Teseract Early Scientific Instruments - a pricey but high quality inventory of antique scientific instruments including a notable collection of rules, sectors, and surveying and measuring instruments.
  • http://www.patented-antiques.com/Backpages/survey/Drafting.htm
Meeker’s Mechanical Nature Antiques - a cheap but generally not very old set of rules and drawing instruments.
  • http://www.thebestthings.com/measurin.htm
The Best of Things - primarily of interest for vintage measuring tools, primarily but not only from America.
  • http://www.sis.org.uk/dealers
Scientific Instrument Society - UK listing of dealers in scientific instruments, notably including mathematical instruments.
  • http://www.asiuk.net/
Antique Scientific Instruments U.K..
  • http://www.newbegin.com/html/scientific.html
Newbegin Antiques.
  • http://www.antiques-sci-tech.com/wcat26.html
Antiques of Science and Technology A short list of calculators, prices on application.
  • http://www.breker.com/LiveAuctions/
Auction Team Breker (Köln (Godorf), Germany) run a scientific instruments speciality auction several times per year and occasionally also list items on ebay.
  • http://www.bonhams.com/
Bonhams (London) run occasional auctions of scientific instruments.

Reference

  • http://historydb.adlerplanetarium.org/signatures/
Webster Signature Database Provides an excellent starting point for searching for details of past makers of scientific instruments.

(:ifend:)

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  • The Curta Page Comprehensive coverage of the Curta calculator. Includes links to other Curta sites and manuals.
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  • The Calculator Reference Comprehensive coverage of Curta, Hewlett Packard, and Texas Instrument calculators. Includes links to other sites and manuals.
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  • Blaise Pascal, “Lettre dédicatoire à Monseigneur le Chancelier sur le sujet de la machine nouvellement inventée par le Sieur B.P. pour faire toutes sortes d’opérations d’arithmétique, par un mouvement reglé, sans plume ny jettons avec un advis necessaire à ceux qui auront curiosité de voir ladite machine, & de s’en servir”, 1645.
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  • Keuffel & Esser Slide Rule Manuals and Catalogues site by Clark McCoy.
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  • Webster Signature Database Provides an excellent starting point for searching for details of past makers of scientific instruments.
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  • Webster Signature Database Provides an excellent starting point for searching for details of past makers of scientific instruments.
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(:Title e-Library:)

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  • Le cabinet de curiosités d’Yves Serra A nice presentation of information on early calculators (with particular attention to those of Pascale and Leibnitz).
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  • Le cabinet de curiosités d’Yves Serra A nice presentation of information on early calculators (with particular attention to those of Pascale and Leibnitz).
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  • Le cabinet de curiosités d’Yves Serra A nice presentation of information on early calculators (with particular attention to those of Pascale and Leibnitz).
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  • Arithmetical Machines & Instruments / 19th century Valéry Monnier’s other set of images and details of some of the most rare and precious calculating machines of the C19 (in French and English).
to:
  • Arithmetical Machines & Instruments / 19th century Valéry Monnier’s other set of images and details of some of the most rare and precious calculating machines of the C19 (in French and English).
22 July 2012 by 58.6.185.246 -
20 July 2012 by 58.6.185.246 -
Changed lines 54-56 from:
to:
  • François Babillot’s calculator website
Added lines 120-121:
  • Greg’s slide rules
Changed lines 142-147 from:
to:
  • linealis.org “Un site consacré aux instruments du calcul manuel tels que les règles et cercles à calcul, les curseurs, abaques, machines à calculer tenant dans la main, planimètres et intégrateurs.”
  • The Slide Rule Universe by Sphere research corporation.
Changed lines 183-184 from:
to:
  • Insterstices Machines à calculer l’association pour le musée international du calcul, de l’informatique et de l’automatique de Valbonne Sophia Antipolis (Amisa ) présente quelques pièces de son patrimoine.
Changed lines 228-232 from:
to:
  • Prof. Dr.-Ing. Christian-M. Hamann’s calculator site
  • Mark Glusker’s calculator site
Added lines 260-261:
  • Collection of Walter Szrek
Added lines 269-270:
  • Collection of Christophe Mery
20 July 2012 by 58.6.185.246 -
Added lines 16-18:
  • Bibnum Classic scientific articles from before 1940 relevant to calculation, mathematics, and information science. Includes original documents from Pascale and Leibniz.
16 July 2012 by 58.6.185.246 -
Changed line 280 from:
  • The Gemmary Antique Scientific Instruments and Old & Rare Books - both a dealer and store front for sales on consignment. Often a bit pricey but quality is generally very high and the proprietor, Dr RC Blankenhorn is expert in this field.
to:
  • The Gemmary Antique Scientific Instruments and Old & Rare Books - both a dealer and store front for sales on consignment. Pricing tends to conform to the high quality of both the objects and the great care and expertise with which they are described, questions answered, and orders executed. The proprietor, Dr RC Blankenhorn is a well known expert in this field.
11 July 2012 by 58.6.185.246 -
Changed line 224 from:
  • http://tech.groups.yahoo.com/group/sliderule/messages Yahoo slide-rule group. It is very active.
to:
  • Yahoo slide-rule group. It is very active.
11 July 2012 by 58.6.185.246 -
Added lines 223-224:
  • http://tech.groups.yahoo.com/group/sliderule/messages Yahoo slide-rule group. It is very active.
11 July 2012 by 58.6.185.246 -
Added lines 221-222:
  • Old Electronic Calculators Yahoo group primarily for old electronic calculators.
05 July 2012 by 211.27.111.182 -
Added lines 163-169:
  • Computer Museum Aachen Primarily electronic computers.
  • The Museum of Modern Human Progress (The American Computer Museum)
  • Stichting Computermuseum (Netherlands)
  • The Computer History Museum (Mountain View, California, USA)
04 July 2012 by 58.6.185.246 -
Changed line 15 from:
  • Cornell University Library Historical Math Monographs a wonderful collection of early mathematics books generally able to be read on line.
to:
  • Cornell University Library Historical Math Monographs. A wonderful collection of early mathematics books generally able to be read on line.
04 July 2012 by 58.6.185.246 -
Added lines 14-15:
  • Cornell University Library Historical Math Monographs a wonderful collection of early mathematics books generally able to be read on line.
04 July 2012 by 58.6.185.246 -
Added lines 112-113:
  • Robert Manley’s Slide Rule Site
04 July 2012 by 58.6.185.246 -
Changed line 77 from:
  • Comptometer Website Very authoritative website on the Felt & Tarrant Comptometer (although no longer maintained as thoroughly).
to:
  • Comptometer Website Very authoritative website on the Felt & Tarrant Comptometer.
14 June 2012 by 58.6.185.246 -
Added lines 116-117:
  • Scanned back issues of the Oughtred Society Journal and other publications An essential reference site for enthusiasts. Access to the last five years publications requires a password and username to be provided by the Society.
26 May 2012 by 58.96.77.111 -
Changed line 1 from:

This is a collection of electronic resources which form part of the background to the collected objects and associated analysis.

to:

This is a collection of electronic resources (including selected links to other relevant websites) which form part of the background to the collected objects and associated analysis.

26 May 2012 by 58.96.77.111 -
Added lines 106-107:
  • Herman van Herwijnen’s Slide Rule Catalogue “LITE”
26 May 2012 by 58.96.77.111 -
26 May 2012 by 58.96.77.111 -
Changed lines 123-125 from:
  • International Slide Rule Museum A survey site focussing primarily on slide rules with a wealth of links and other material including other related sites, and manuals and related material. See also its helpful and comprehensive links page.
to:
  • International Slide Rule Museum A survey site focussing primarily on slide rules with a wealth of links and other material including other related sites, and manuals and related material. See also its helpful and comprehensive links page.
  • Otis King’s Patent Calculator Specialist site focussing on the Otis King cylindrical sliderule.
26 May 2012 by 58.96.77.111 -
Changed line 174 from:
  • http://www.rechenwerkzeug.de/default.htm
to:
  • Mein Rechner tut’s auch ohne Strom…
26 May 2012 by 58.96.77.111 -
Added lines 167-168:
  • The Early Office Museum
25 May 2012 by 58.96.77.111 -
Changed line 238 from:
  • Fred’s Mechanical CalculatorsCalculator collection of Fred Haegen
to:
  • Fred’s Mechanical Calculators Calculator collection of Fred Haegen
25 May 2012 by 58.96.77.111 -
Changed lines 164-165 from:
  • Reinhard Atzbach’s extensive list of relevant literature (in German)
to:
  • rechenwerkzeug Reinhard Atzbach’s site with a very nice range of antique calculators generally in very nice condition, and an extensive listing of relevant literature (in German).
Added lines 237-238:
  • Fred’s Mechanical CalculatorsCalculator collection of Fred Haegen
25 May 2012 by 58.96.77.111 -
Changed lines 47-49 from:
to:
  • Índice de las Máquinas de Calcular a comprehensive survey site by Josep Balsach Peig, in Spanish.
Changed line 201 from:
  • Old Calculator Forum
to:
  • Old Calculator Forum e-mail list website mainly but not exclusively focussing on electric and early electronic calculators.
25 May 2012 by 58.96.77.111 -
Changed lines 147-149 from:
to:
  • Mathematische Maschinenmuseum. Collection of the Hochschule in Ludwigsburg (Germany)
  • University of Greifswald An extensive mechanical calculator collection.
Changed lines 195-196 from:

Associations of Calculator Collectors

to:

Associations of Calculator Collectors and Collector Mail Lists

Added lines 199-200:
  • Old Calculator Forum
Changed lines 236-237 from:
  • Prehistoriadelainformatica High quality collection of office machines by Eduardo Guillem, in Spanish.

A beautiful collection of Eduardo Guillem (Spain). Includes a fine selection of antique mechanical calculators and a number of manuals.

to:
  • Prehistoriadelainformatica High quality collection of office machines by Eduardo Guillem, in Spanish. Includes a fine selection of antique mechanical calculators and a number of manuals.
25 May 2012 by 58.96.77.111 -
Changed lines 41-42 from:
  • Mechanical Calculating Devices by Wolf G. Blümich in German.
to:
  • Mechanische Rechenhilfsmittel Mechanical Calculating Devices by Wolf G. Blümich (in German.)
Changed lines 69-72 from:
  • Arithmetical Machines & Instruments / 19th century Valéry Monnier’s other set of images and details of some of the most rare and precious calculating machines of the C19.
  • Arithmetic Machines and Instruments of the C19 Many photos of calculating machines and mathematical instruments owned by an important French collector.
to:
  • Arithmetical Machines & Instruments / 19th century Valéry Monnier’s other set of images and details of some of the most rare and precious calculating machines of the C19 (in French and English).
Added lines 230-232:
  • Prehistoriadelainformatica High quality collection of office machines by Eduardo Guillem, in Spanish.

A beautiful collection of Eduardo Guillem (Spain). Includes a fine selection of antique mechanical calculators and a number of manuals.

Added lines 236-239:
  • Telmachineverzameling Bob de Groot in Dutch
  • sikkepit Collection of Jantine Bloemhof (in Dutch) primarily aimed at demonstrating to school children different ways of doing calculations before the advent of electronic calculators.
25 May 2012 by 58.96.77.111 -
Added lines 68-69:
  • Arithmetical Machines & Instruments / 19th century Valéry Monnier’s other set of images and details of some of the most rare and precious calculating machines of the C19.
25 May 2012 by 58.96.77.111 -
Added lines 92-93:
  • John Huey’s Picasawebalbum with illustrations of a wide range of Addiator Troncet calculators.
25 May 2012 by 58.96.77.111 -
25 May 2012 by 58.96.77.111 -
Changed lines 19-20 from:
  • World-wide Patent Database from the Encyclopaedia of Mechanical Calculators.
to:
  • Rechnerlexicon The leading and most comprehensive survey site for calculator specialists and collectors with information about almost every known mechanical calculator and a database of more than 23750 patents.
Changed lines 22-23 from:
 	
to:
25 May 2012 by 58.96.77.111 -
Added lines 19-20:
  • World-wide Patent Database from the Encyclopaedia of Mechanical Calculators.
Deleted lines 38-39:
  • World-wide Patent Database from the Encyclopaedia of Mechanical Calculators.
25 May 2012 by 58.96.77.111 -
Added lines 257-258:
  • Antiques of Science and Technology A short list of calculators, prices on application.
25 May 2012 by 58.96.77.111 -
Added line 99:
Added lines 119-120:
  • International Slide Rule Museum A survey site focussing primarily on slide rules with a wealth of links and other material including other related sites, and manuals and related material. See also its helpful and comprehensive links page.
25 May 2012 by 58.96.77.111 -
Changed line 257 from:
  • Bonhams (London) run auctions of scientific instruments at least once per year.
to:
  • Bonhams (London) run occasional auctions of scientific instruments.
25 May 2012 by 58.96.77.111 -
Added lines 254-257:
  • Auction Team Breker (Köln (Godorf), Germany) run a scientific instruments speciality auction several times per year and occasionally also list items on ebay.
  • Bonhams (London) run auctions of scientific instruments at least once per year.
24 May 2012 by 58.6.191.64 -
Changed line 184 from:
  • http://www.mwtca.org/tool-dealers.htmlMid-West Tool Collectors Association List of US antique tool dealers (not particularly calculators, but some relevant tools are accessible).
to:
  • Mid-West Tool Collectors Association List of US antique tool dealers (not particularly calculators, but some relevant tools are accessible).
24 May 2012 by 58.6.191.64 -
Changed line 184 from:
  • http://www.mwtca.org/tool-dealers.htmlMid-West Tool Collectors Association]] List of US antique tool dealers (not particularly calculators, but some relevant tools are accessible).
to:
  • http://www.mwtca.org/tool-dealers.htmlMid-West Tool Collectors Association List of US antique tool dealers (not particularly calculators, but some relevant tools are accessible).
23 May 2012 by 58.6.191.64 -
Changed line 97 from:
  • Gunter Works All about Gunter Scales and Sectors and how to use them (in German)
to:
  • Gunter Works All about Gunter Scales and Sectors and how to use them (mostly in German but also in part in English)
23 May 2012 by 58.6.191.64 -
Added lines 94-97:

Gunter Scales & Sectors

  • Gunter Works All about Gunter Scales and Sectors and how to use them (in German)
22 May 2012 by 58.6.191.64 -
Changed lines 94-96 from:
  • http://www.mwtca.org/tool-dealers.htmlMid-West Tool Collectors Association]] List of US antique tool dealers (inter alia).
to:
Added lines 179-180:
  • http://www.mwtca.org/tool-dealers.htmlMid-West Tool Collectors Association]] List of US antique tool dealers (not particularly calculators, but some relevant tools are accessible).
22 May 2012 by 58.6.191.64 -
Added lines 93-94:
  • http://www.mwtca.org/tool-dealers.htmlMid-West Tool Collectors Association]] List of US antique tool dealers (inter alia).
22 May 2012 by 58.6.191.64 -
Changed lines 249-251 from:
to:

Reference

  • Webster Signature Database Provides an excellent starting point for searching for details of past makers of scientific instruments.
22 May 2012 by 58.6.191.64 -
Changed line 124 from:
  • Mathematical Instruments: A Private Collection
to:
  • Mathematical Instruments: A Private Collection
22 May 2012 by 58.6.191.64 -
Changed lines 116-117 from:

Measuring Instruments

to:

Measuring & Drawing Instruments

Added lines 123-124:
  • Mathematical Instruments: A Private Collection
18 May 2012 by 58.6.191.64 -
Added lines 62-63:
  • Collection of Kees Nagtegaal useful set of manuals for slide rules and the more common calculators.
18 May 2012 by 210.50.40.9 -
Changed lines 231-232 from:
  • Gilai Collectibles
to:
  • Gilai Collectibles.
Changed lines 241-243 from:
  • Antique Scientific Instruments U.K.
  • Newbegin Antiques
to:
  • Antique Scientific Instruments U.K..
  • Newbegin Antiques.
17 May 2012 by 210.50.40.9 -
Changed lines 239-241 from:
  • Scientific Instrument Society - UK listing of dealers in scientific instruments, notably including mathematical instruments.
  • Antique Scientific Instruments U.K.
to:
  • Scientific Instrument Society - UK listing of dealers in scientific instruments, notably including mathematical instruments.
  • Antique Scientific Instruments U.K.
  • Newbegin Antiques
17 May 2012 by 210.50.40.9 -
Added lines 240-241:
  • Antique Scientific Instruments U.K.
17 May 2012 by 210.50.40.9 -
Added lines 238-239:
  • Scientific Instrument Society - UK listing of dealers in scientific instruments, notably including mathematical instruments.
13 May 2012 by 58.6.191.64 -
Changed line 120 from:
  • Geometricum A systematic presentation of scientific instruments, in particular astrolabes, drawing instruments and surveying instruments from Roman to C19
to:
  • Geometricum Markus Geissbuehler presents a systematic presentation of scientific instruments, in particular astronomical, drawing instruments and surveying instruments from Roman to C19
13 May 2012 by 58.6.191.64 -
Added lines 119-120:
  • Geometricum A systematic presentation of scientific instruments, in particular astrolabes, drawing instruments and surveying instruments from Roman to C19
10 May 2012 by 58.6.191.64 -
Changed line 227 from:
  • ebay US, ebay Australia, ebay Germany, ebay Austria, ebay France, ebay Italy and in general ebay around the world is probably the prime location for purchase of the more common (and some less common) antique calculation devices and books. Prices are very variable and if you are lucky ridiculously cheap (or conversely absurdly expensive). You are absolutely on your own in judging the merit of the items on offer. Dates and descriptions are often on a scale of misleading to fanciful. Things advertised as “rare” are more often than not not.
to:
  • ebay US, ebay Australia, ebay Germany, ebay Austria, ebay France, ebay UK, ebay Italy and in general ebay around the world is probably the prime location for purchase of the more common (and some less common) antique calculation devices and books. Prices are very variable and if you are lucky ridiculously cheap (or conversely absurdly expensive). You are absolutely on your own in judging the merit of the items on offer. Dates and descriptions are often on a scale of misleading to fanciful. Things advertised as “rare” are more often than not not.
10 May 2012 by 58.6.191.64 -
Changed line 227 from:
  • ebay US, ebay Australia, ebay Germany, ebay Austria, ebay France and in general ebay around the world is probably the prime location for purchase of the more common (and some less common) antique calculation devices and books. Prices are very variable and if you are lucky ridiculously cheap (or conversely absurdly expensive). You are absolutely on your own in judging the merit of the items on offer. Dates and descriptions are often on a scale of misleading to fanciful. Things advertised as “rare” are more often than not not.
to:
  • ebay US, ebay Australia, ebay Germany, ebay Austria, ebay France, ebay Italy and in general ebay around the world is probably the prime location for purchase of the more common (and some less common) antique calculation devices and books. Prices are very variable and if you are lucky ridiculously cheap (or conversely absurdly expensive). You are absolutely on your own in judging the merit of the items on offer. Dates and descriptions are often on a scale of misleading to fanciful. Things advertised as “rare” are more often than not not.
08 May 2012 by 58.6.191.64 -
Added lines 45-46:
  • Opticalia Museum - museum menu is working, but the catalogue menu was still under construction in May 2012.
08 May 2012 by 58.6.191.64 -
Added lines 230-231:
  • Meeker’s Mechanical Nature Antiques - a cheap but generally not very old set of rules and drawing instruments.
08 May 2012 by 58.6.191.64 -
Added lines 228-229:
  • Teseract Early Scientific Instruments - a pricey but high quality inventory of antique scientific instruments including a notable collection of rules, sectors, and surveying and measuring instruments.
08 May 2012 by 58.6.191.64 -
Added lines 115-116:
  • Peter Giringhelli’s collection of measuring and drawing instruments, and rules
08 May 2012 by 58.6.191.64 -
Deleted lines 227-228:
  • Salas Das Armas - primarily of interest for measuring tools and in particular dividers.
08 May 2012 by 58.6.191.64 -
Changed lines 227-229 from:
  • The Best of Things - primarily of interest for vintage measuring tools, primarily but not only from America.
to:
  • The Best of Things - primarily of interest for vintage measuring tools, primarily but not only from America.
  • Salas Das Armas - primarily of interest for measuring tools and in particular dividers.
08 May 2012 by 58.6.191.64 -
Changed lines 112-114 from:
to:

Measuring Instruments

  • CollectingMe.com Some nice examples of various antique measuring instruments.
04 May 2012 by 58.6.191.64 -
Changed lines 217-220 from:
  • Fleaglass a store front for a range of private sellers and dealers for various categories of antique scientific instruments including those for calculation
  • The Gemmary Antique Scientific Instruments and Old & Rare Books both a dealer and store front for sales on consignment. Often a bit pricey but quality is generally very high and the proprietor, Dr RC Blankenhorn is expert in this field.
to:
  • Fleaglass - a store front for a range of private sellers and dealers for various categories of antique scientific instruments including those for calculation
  • The Gemmary Antique Scientific Instruments and Old & Rare Books - both a dealer and store front for sales on consignment. Often a bit pricey but quality is generally very high and the proprietor, Dr RC Blankenhorn is expert in this field.
Added lines 224-225:
  • The Best of Things - primarily of interest for vintage measuring tools, primarily but not only from America.
04 May 2012 by 58.6.191.64 -
Added lines 222-223:
  • Gilai Collectibles
04 May 2012 by 58.6.191.64 -
Changed line 221 from:
  • ebay US, ebay Australia, ebay Germany, ebay Austria, ebay France and in general ebay around the world is probably the prime location for purchase of the more common (and some less common) antique calculation devices and books. Prices are very variable and if you are lucky ridiculously cheap (or conversely absurdly expensive). You are absolutely on your own on judging the merit of the items on offer. Dates and descriptions are often on a scale of misleading to fanciful. Things advertised as “rare” are more often than not not.
to:
  • ebay US, ebay Australia, ebay Germany, ebay Austria, ebay France and in general ebay around the world is probably the prime location for purchase of the more common (and some less common) antique calculation devices and books. Prices are very variable and if you are lucky ridiculously cheap (or conversely absurdly expensive). You are absolutely on your own in judging the merit of the items on offer. Dates and descriptions are often on a scale of misleading to fanciful. Things advertised as “rare” are more often than not not.
04 May 2012 by 58.6.191.64 -
Changed line 221 from:
  • ebay US, ebay Australia, ebay Germany, ebay Austria, ebay France and in general ebay around the world is probably the prime location for purchase of the more common (and some less common) antique calculation devices and books. However, you are absolutely on your own on judging the merit of the items on offer. Dates and descriptions are often on a scale of misleading to fanciful. Things advertised as “rare” are more often than not not.
to:
  • ebay US, ebay Australia, ebay Germany, ebay Austria, ebay France and in general ebay around the world is probably the prime location for purchase of the more common (and some less common) antique calculation devices and books. Prices are very variable and if you are lucky ridiculously cheap (or conversely absurdly expensive). You are absolutely on your own on judging the merit of the items on offer. Dates and descriptions are often on a scale of misleading to fanciful. Things advertised as “rare” are more often than not not.
04 May 2012 by 58.6.191.64 -
Changed line 221 from:
  • ebay US, ebay Australia, ebay Germany, ebay Austria, ebay France and in general ebay around the world is probably the prime location for purchase of the more common (and some less common) antique calculation devices and books. However, you are absolutely on your own on judging the merit of the items on offer. Things advertised as “rare” are more often than not not.
to:
  • ebay US, ebay Australia, ebay Germany, ebay Austria, ebay France and in general ebay around the world is probably the prime location for purchase of the more common (and some less common) antique calculation devices and books. However, you are absolutely on your own on judging the merit of the items on offer. Dates and descriptions are often on a scale of misleading to fanciful. Things advertised as “rare” are more often than not not.
04 May 2012 by 58.6.191.64 -
Changed line 221 from:
  • http://ebay.com, [http://ebay.com.au]], http://ebay.de, http://ebay.at, http://ebay.fr ebay around the world is probably the prime location for purchase of the more common (and some less common) antique calculation devices and books. However, you are absolutely on your own on judging the merit of the items on offer. Things advertised as “rare” are more often than not not.
to:
  • ebay US, ebay Australia, ebay Germany, ebay Austria, ebay France and in general ebay around the world is probably the prime location for purchase of the more common (and some less common) antique calculation devices and books. However, you are absolutely on your own on judging the merit of the items on offer. Things advertised as “rare” are more often than not not.
04 May 2012 by 58.6.191.64 -
Changed line 215 from:

Some useful stores of antique scientific instruments - the Calculant cannot vouch for anything advertised. (Calculant has no financial connection with any of these stores.)

to:

Some useful stores of antique scientific instruments. (Calculant has no financial connection with any of these stores and cannot vouch for anything advertised. Caveat Emptor applies!)

04 May 2012 by 58.6.191.64 -
Changed line 219 from:
  • The Gemmary Antique Scientific Instruments and Old & Rare Books both a dealer and store front for sales on consignment. Often a bit pricey but quality is generally very high and the proprietor is extremely knowledgeable.
to:
  • The Gemmary Antique Scientific Instruments and Old & Rare Books both a dealer and store front for sales on consignment. Often a bit pricey but quality is generally very high and the proprietor, Dr RC Blankenhorn is expert in this field.
04 May 2012 by 58.6.191.64 -
Added lines 213-225:

Online stores

Some useful stores of antique scientific instruments - the Calculant cannot vouch for anything advertised. (Calculant has no financial connection with any of these stores.)

  • Fleaglass a store front for a range of private sellers and dealers for various categories of antique scientific instruments including those for calculation
  • The Gemmary Antique Scientific Instruments and Old & Rare Books both a dealer and store front for sales on consignment. Often a bit pricey but quality is generally very high and the proprietor is extremely knowledgeable.
  • http://ebay.com, [http://ebay.com.au]], http://ebay.de, http://ebay.at, http://ebay.fr ebay around the world is probably the prime location for purchase of the more common (and some less common) antique calculation devices and books. However, you are absolutely on your own on judging the merit of the items on offer. Things advertised as “rare” are more often than not not.
01 May 2012 by 58.6.191.64 -
Added lines 166-168:
  • Philip A Cannon II’s site with a great deal of information cataloguing makers of instruments.
Deleted lines 179-181:
  • Philip A Cannon II’s site with a great deal of information cataloguing makers of instruments.
01 May 2012 by 58.6.191.64 -
Added lines 177-178:
  • Philip A Cannon II’s site with a great deal of information cataloguing makers of instruments.
01 May 2012 by 58.6.191.64 -
Changed line 176 from:
  • Milestones in the History of Thematic Cartography, Statistical Graphics, and Data Visualization a nice timeline with links
to:
  • Milestones in the History of Thematic Cartography, Statistical Graphics, and Data Visualization a nice timeline with links.
01 May 2012 by 58.6.191.64 -
Changed line 176 from:
  • http://www.datavis.ca/milestones/index.php?group=1600s Milestones in the History of Thematic Cartography, Statistical Graphics, and Data Visualization
to:
  • Milestones in the History of Thematic Cartography, Statistical Graphics, and Data Visualization a nice timeline with links
01 May 2012 by 58.6.191.64 -
Added lines 175-176:
  • http://www.datavis.ca/milestones/index.php?group=1600s Milestones in the History of Thematic Cartography, Statistical Graphics, and Data Visualization
15 April 2012 by 50.16.198.92 -
Changed line 19 from:
  • Rechanmaschinen-Illustrated: The most comprehensive listing of details about early calculating machines on the web. Based around the classic study Ernst Martin, “Die Rechenmaschinen”, 1925, and translated into English as Ernst Martin, “The Calculating Machines”, MIT Press and The Charles Babbage Institute, USA, “History of Computing” series, 1992.
to:
  • Rechenmaschinen-Illustrated: The most comprehensive listing of details about early calculating machines on the web. Based around the classic study Ernst Martin, “Die Rechenmaschinen”, 1925, and translated into English as Ernst Martin, “The Calculating Machines”, MIT Press and The Charles Babbage Institute, USA, “History of Computing” series, 1992.
26 March 2012 by 203.5.69.180 -
Changed line 44 from:
  • in German.
to:
  • Mathematics site by Reiner Hoffmann in German.
12 February 2012 by Jim Falk -
Changed line 164 from:
  • Giovanni Breda’s list of calculator collector websites
to:
  • Giovanni Breda’s list of calculator collector and calculator & slide rule websites
12 February 2012 by Jim Falk -
Added lines 164-165:
  • Giovanni Breda’s list of calculator collector websites
Added line 175:
12 February 2012 by Jim Falk -
Added lines 124-125:
  • Stuttgart Landesmuseum
12 February 2012 by Jim Falk -
Added lines 42-46:
  • Mechanical Calculating Devices by Wolf G. Blümich in German.
  • in German.
Changed lines 88-90 from:
to:
  • Museum of Pocket Calculating Devices mainly focussing on electronic pocket calculators.
Added lines 126-127:
Changed lines 170-171 from:
to:
  • Webring of Calculator Collecting simply a web-ring for those interested.
Added lines 192-201:
  • Collection of Peter Kernwein
  • “Old Bits” collection of Frank Salomon
  • Calculator Collection of Anthon (Tony) Thimet
  • Collection of Andreas Tabak
  • Museo didattico del Computer in Itallian
12 February 2012 by Jim Falk -
Added lines 40-41:
  • History of Computer Antiquity
Added lines 150-151:
  • WikiCollecting article on collecting calculators
12 February 2012 by Jim Falk -
Changed line 163 from:
  • http://www.xnumber.com/xnumber/ another list of collectors]]
to:
  • Another list of collectors
12 February 2012 by Jim Falk -
Added lines 162-163:
  • http://www.xnumber.com/xnumber/ another list of collectors]]
05 February 2012 by Jim Falk -
Changed lines 79-81 from:
to:
  • Office Machines Americana including a useful set of manuals.
Added lines 144-147:
  • General calculator list from the “Museum of HP Calculators”
  • Yesterday’s Office includes a forum for collectors of office antiques.
05 February 2012 by Jim Falk -
Added lines 37-38:
  • World-wide Patent Database from the Encyclopaedia of Mechanical Calculators.
05 February 2012 by Jim Falk -
05 February 2012 by Jim Falk -
Added lines 164-165:
  • Topeka Computing Museum - “Ed’s 948 Collection”
05 February 2012 by Jim Falk -
Added lines 120-121:
  • Reinhard Atzbach’s extensive list of relevant literature (in German)
04 February 2012 by Jim Falk -
Changed line 36 from:
  • Michel Bardel’s list Tentative list of all existing mechanical machines since 1820, together with FAQs abd serial numbers. An invaluable reference source.
to:
  • Michel Bardel’s list Tentative list of all existing mechanical machines since 1820, together with FAQs and serial numbers. An invaluable reference source.
04 February 2012 by Jim Falk -
Added line 114:
Changed line 135 from:
  • http://www.crisvandevel.de/Cris Vandevel’s Antique Mechanical Four-species Calculators
to:
  • Cris Vandevel’s Antique Mechanical Four-species Calculators
04 February 2012 by Jim Falk -
Added lines 68-71:
  • Facit Page by James Redin including a comprehensive list of models of the Facit calculators.
  • History of the Facit Calculator by Christofer Nöring
04 February 2012 by Jim Falk -
Added lines 128-133:
  • Wim Hasselo’s comprehensive website
  • http://www.crisvandevel.de/Cris Vandevel’s Antique Mechanical Four-species Calculators
  • François Babillot’s Database of Antique Calculators
Added lines 149-150:
  • Nathan’s Possibly Interesting History of Computing Website
04 February 2012 by Jim Falk -
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to:
  • Collection of Giovanni Breda
Added lines 139-140:
  • List of famous calculator collectors
04 February 2012 by Jim Falk -
Changed lines 86-89 from:
to:
  • Dutch Circle for Historical Calculating Instruments
  • Museum of HP Calculators History of Slide Rules
  • The Death of the Slide Rule by James Redin
Added lines 114-117:
  • Calculatrice
  • Aus der Rechenmaschinen-Werkstatt von D. Bölter
Added lines 139-144:
  • Collection of Herman Price
  • Collection of Kees Nagtegaal
  • Collection of Nico Baaijens
17 January 2012 by Jim Falk -
Changed line 96 from:
  • The Heinz Nixdorf MuseumsForum Claims to be the world’s biggest computer museum.
to:
  • The Heinz Nixdorf MuseumsForum Claims to be the world’s biggest computer museum, situated in Paderborn, Germany.
17 January 2012 by Jim Falk -
Added lines 95-96:
  • The Heinz Nixdorf MuseumsForum Claims to be the world’s biggest computer museum.
17 January 2012 by Jim Falk -
Added lines 119-120:
  • IFHB Internationales Forum Historische Bürowelt e.V. with also an extensive set of links to other relevant sites.
16 January 2012 by Jim Falk -
Added lines 111-112:
  • Schneemanns web page
16 January 2012 by Jim Falk -
Added lines 36-37:
  • Michel Bardel’s list Tentative list of all existing mechanical machines since 1820, together with FAQs abd serial numbers. An invaluable reference source.
Changed lines 73-75 from:
to:
Changed line 110 from:
  • Jan Meyer’s Geschichte der Rechenhilfsmittel)
to:
  • Jan Meyer’s Geschichte der Rechenhilfsmittel
16 January 2012 by Jim Falk -
Added lines 109-110:
  • Jan Meyer’s Geschichte der Rechenhilfsmittel)
15 January 2012 by Jim Falk -
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  • Calculant Included in celebration of infinite regression.
to:
  • Calculant - well you must know about that, or you wouldn’t be here…
15 January 2012 by Jim Falk -
Changed line 28 from:
  • Swedish Typewriters Site - listing of antique office calculators
to:
  • Swedish Typewriters Site - listing of antique office calculators From the home page select the “The Collection” in the navigation bar on the left, and then scroll down to the RÄKNEMASKINER / CALCULATORS section.
15 January 2012 by Jim Falk -
Added lines 27-28:
  • Swedish Typewriters Site - listing of antique office calculators
15 January 2012 by Jim Falk -
Added lines 62-69:
  • William Ohdner’s site commemorating the Ohdner calculator
  • Museum of Soviet Calculators
  • Soviet Calculators Collection
11 January 2012 by 58.6.184.54 -
Changed line 19 from:
  • Rechanmaschinen-Illustrated: The most comprehensive listing of details about early calculating machines on the web. Based around the classic study Ernst Martin, “Die Rechenmaschinen”, 1925, and translated into English as Ernst Martin, “The Calculating Machines”, MIT Press and The Charles Babbage Institute, USA, “History of Computing” series, 1992.
to:
  • Rechanmaschinen-Illustrated: The most comprehensive listing of details about early calculating machines on the web. Based around the classic study Ernst Martin, “Die Rechenmaschinen”, 1925, and translated into English as Ernst Martin, “The Calculating Machines”, MIT Press and The Charles Babbage Institute, USA, “History of Computing” series, 1992.
11 January 2012 by 58.6.184.54 -
Changed line 19 from:
  • Rechanmaschinen-Illustrated: The most comprehensive listing of details about early calculating machines on the web. Based around the classic study Ernst Martin, “Die Rechenmaschinen”, 1925, and translated into English as Ernst Martin, “The Calculating Machines”, MIT Press and The Charles Babbage Institute, USA, “History of Computing” series, 1992.
to:
  • Rechanmaschinen-Illustrated: The most comprehensive listing of details about early calculating machines on the web. Based around the classic study Ernst Martin, “Die Rechenmaschinen”, 1925, and translated into English as Ernst Martin, “The Calculating Machines”, MIT Press and The Charles Babbage Institute, USA, “History of Computing” series, 1992.
11 January 2012 by 58.6.184.54 -
Changed line 82 from:
  • A specialist museum focussed on the history of calculation, housing many rare and precious antique calculators.
to:
  • The Arithmeum, Bonn A specialist museum focussed on the history of calculation, housing many rare and precious antique calculators.
11 January 2012 by 58.6.184.54 -
Added lines 81-82:
  • A specialist museum focussed on the history of calculation, housing many rare and precious antique calculators.
11 January 2012 by 58.6.184.54 -
Added lines 73-74:
  • The Oughtred Society
11 January 2012 by 58.6.184.54 -
Changed line 19 from:
  • Rechanmaschinen-Illustrated: The most comprehensive listing of details about early calculating machines on the web. Based around the classic study Ernst Martin, “Die Rechenmaschinen”, 1925, and translated into English as Ernst Martin, “The Calculating Machines”,MIT Press and The Charles Babbage Institute, USA, “History of Computing” series, 1992.
to:
  • Rechanmaschinen-Illustrated: The most comprehensive listing of details about early calculating machines on the web. Based around the classic study Ernst Martin, “Die Rechenmaschinen”, 1925, and translated into English as Ernst Martin, “The Calculating Machines”, MIT Press and The Charles Babbage Institute, USA, “History of Computing” series, 1992.
11 January 2012 by 58.6.184.54 -
Changed line 108 from:
  • Calculant Included in the spirit of infinite regression.
to:
  • Calculant Included in celebration of infinite regression.
11 January 2012 by 58.6.184.54 -
Changed line 108 from:
  • http://calculant.metastudies.net Included in the spirit of infinite regression.
to:
  • Calculant Included in the spirit of infinite regression.
11 January 2012 by 58.6.184.54 -
Changed lines 61-63 from:
  • The Curta Page Comprehensive coverage of the Curta calculator.
to:
  • The Curta Page Comprehensive coverage of the Curta calculator. Includes links to other Curta sites and manuals.
Added lines 107-108:
  • http://calculant.metastudies.net Included in the spirit of infinite regression.
11 January 2012 by 58.6.184.54 -
Deleted lines 48-52:
Added lines 58-61:
  • Comptometer Website Very authoritative website on the Felt & Tarrant Comptometer (although no longer maintained as thoroughly).
  • The Curta Page Comprehensive coverage of the Curta calculator.
11 January 2012 by 58.6.184.54 -
Added lines 98-99:
  • CALCLIST a “must” subscription for the serious calculator collector.
11 January 2012 by 58.6.184.54 -
Added lines 82-83:
  • List of museums at www.arithmometer.org
11 January 2012 by 58.6.184.54 -
Added lines 45-48:
  • Office Machines America Pay site.
11 January 2012 by 58.6.184.54 -
Added lines 43-46:
  • Miscellaneous Manuals Pay site, but if you can’t get these elsewhere…
11 January 2012 by 58.6.184.54 -
Added lines 37-42:
  • Calcolatoria downloads
  • Mathematical Instruments Catalogues and Brochures
  • Prehistoria de la Informatica Office Collectibles
11 January 2012 by 58.6.184.54 -
11 January 2012 by 58.6.184.54 -
Changed lines 32-33 from:
  • Online documents A broad listing of useful links to documents covering the history of calculators.
to:
  • Online documents A broad listing of useful links to documents covering the history of calculators.

Manuals and Instructions

  • Calculator Manuals from Rechenwerkzeug.de
Added lines 47-48:
  • Original documents on the History of Calculators
11 January 2012 by 58.6.184.54 -
Changed lines 42-53 from:
  • International Slide Rule Museum
to:

Slide Rules

  • International Slide Rule Museum
  • Rechenscheiber im Online-Museum
  • Eric’s Slide Rule Site
  • Anhang 2.1: Bedienungs- und Serviceanleitungen für Tabellen, Rechenschieber, -scheiben, -walzen und -skalen Instructions for many slide rules.
11 January 2012 by 58.6.184.54 -
Added lines 41-44:
  • International Slide Rule Museum
11 January 2012 by 58.6.184.54 -
Added lines 41-44:

Museums

  • Science Museum (UK)
11 January 2012 by 58.6.184.54 -
Added lines 51-52:
  • http://www.rechenwerkzeug.de/default.htm
11 January 2012 by 58.6.184.54 -
Added lines 50-51:
  • Retrocalculators.com
Changed line 54 from:

ANCMECA - machine à écrire mécanique et à la machine à calculer mécanique in multiple languages.

to:
  • ANCMECA - machine à écrire mécanique et à la machine à calculer mécanique in multiple languages.
11 January 2012 by 58.6.184.54 -
Changed lines 30-31 from:
  • Beiträge zur Geschichte des mechanischen Rechnens: Contributions to the History of Mechanical Calculation Good list of publications, books and historical articles dealing in particular with the history and internal workings of calculating machines.
to:
  • Beiträge zur Geschichte des mechanischen Rechnens: Contributions to the History of Mechanical Calculation Good list of publications, books and historical articles dealing in particular with the history and internal workings of calculating machines.
  • Online documents A broad listing of useful links to documents covering the history of calculators.
Changed lines 40-42 from:

Electromechanical calculating machines from the 1960’s includes extensive lists of other relevant links and books.

Other Survey Sites

to:
  • Electromechanical calculating machines from the 1960’s includes extensive lists of other relevant links and books.

Other Useful Sites

Added lines 47-48:
  • Recommended links by Chris from Calclist
11 January 2012 by 58.6.184.54 -
11 January 2012 by 58.6.184.54 -
Changed lines 45-47 from:
to:

Associations of Calculator Collectors

ANCMECA - machine à écrire mécanique et à la machine à calculer mécanique in multiple languages.

11 January 2012 by 58.6.184.54 -
Added lines 37-38:

Electromechanical calculating machines from the 1960’s includes extensive lists of other relevant links and books.

11 January 2012 by 58.6.184.54 -
11 January 2012 by 58.6.184.54 -
Added lines 29-30:
  • Beiträge zur Geschichte des mechanischen Rechnens: Contributions to the History of Mechanical Calculation Good list of publications, books and historical articles dealing in particular with the history and internal workings of calculating machines.
11 January 2012 by 58.6.184.54 -
Added lines 28-29:
  • Mathematisches Maschinenemuseum Good historical summaries and a nice set of videos of machines in action.
Changed line 36 from:

Personal Survey Sites

to:

Other Survey Sites

Added lines 38-42:
  • Vintage Calculators Website A significant number of photos of the more widely collected old mechanical calculators, together with a survey of electrical and electronic machines.
11 January 2012 by 203.5.69.180 -
Added lines 34-35:

Personal Survey Sites

  • History of Mechanical Calculators Part of James Redin’s Xnumber World of Personal Caclulators site. Some useful links to documents (also listed in other sites.)
04 January 2012 by 58.96.77.111 -
Changed line 11 from:
  • Napier, Rabdologiae seu numerationis per vigula, 1628 (first published 1617).
to:
  • John Napier, Rabdologiae seu numerationis per vigula, 1628 (first published 1617).
04 January 2012 by 58.96.77.111 -
Changed lines 24-26 from:
  • Büromaschinen Lexikon Published by Goeller-Verlag the annual office machines dictionary provided a comprehensive illustrated overview of common office equipment for the respective years. This site provides collectors with the information on calculators from that website.[in German]
to:
  • Büromaschinen Lexikon Published by Goeller-Verlag the annual office machines dictionary provided a comprehensive illustrated overview of common office equipment for the respective years. This site provides collectors with the information on calculators from that website.[in German]
  • John Wolff’s Web Museum Calculating Machines A wonderfully detailed site by an expert collector with great mechanical insight into the workings of the extensive set of calculators listed.
04 January 2012 by 58.96.77.111 -
Added lines 6-9:
(Clicking on the link will download the relevant book.)
04 January 2012 by 58.96.77.111 -
Changed line 9 from:
  • Jacob Leupold, Theatrum Arithmetico-Geometricum das ist: Schau-Platz der Rechen- und Mess-Kunst. . . . Christoph Zunkel, Leipzig, 1774 (first edition 1727)
to:
  • Jacob Leupold, Theatrum Arithmetico-Geometricum das ist: Schau-Platz der Rechen- und Mess-Kunst. . . . Christoph Zunkel, Leipzig, 1774 (first edition 1727). The best illustrated book on calculation and measurement published during the eighteenth century.
04 January 2012 by 58.96.77.111 -
Added lines 9-10:
  • Jacob Leupold, Theatrum Arithmetico-Geometricum das ist: Schau-Platz der Rechen- und Mess-Kunst. . . . Christoph Zunkel, Leipzig, 1774 (first edition 1727)
Changed lines 15-16 from:

Rechanmaschinen-Illustrated: The most comprehensive listing of details about early calculating machines on the web. Based around the classic study Ernst Martin, “Die Rechenmaschinen”, 1925, and translated into English as Ernst Martin, “The Calculating Machines”,MIT Press and The Charles Babbage Institute, USA, “History of Computing” series, 1992.

to:
  • Rechanmaschinen-Illustrated: The most comprehensive listing of details about early calculating machines on the web. Based around the classic study Ernst Martin, “Die Rechenmaschinen”, 1925, and translated into English as Ernst Martin, “The Calculating Machines”,MIT Press and The Charles Babbage Institute, USA, “History of Computing” series, 1992.
Changed lines 18-21 from:

Histoire de l’Informatique Wide-ranging gallery of calculators and associated information. [in French] 

Büromaschinen Lexikon Published by Goeller-Verlag the annual office machines dictionary provided a comprehensive illustrated overview of common office equipment for the respective years. This site provides collectors with the information on calculators from that website.[in German]

to:
  • Histoire de l’Informatique Wide-ranging gallery of calculators and associated information. [in French] 
  • Büromaschinen Lexikon Published by Goeller-Verlag the annual office machines dictionary provided a comprehensive illustrated overview of common office equipment for the respective years. This site provides collectors with the information on calculators from that website.[in German]
Changed lines 24-29 from:

Valéry Monnier’s extraordinary and expert website on the Thomas de Colmar Arithmometer

Arithmetic Machines and Instruments of the C19 Many photos of calculating machines and mathematical instruments owned by an important French collector.

to:
  • Valéry Monnier’s extraordinary and expert website on the Thomas de Colmar Arithmometer
  • Arithmetic Machines and Instruments of the C19 Many photos of calculating machines and mathematical instruments owned by an important French collector.
Changed line 32 from:

Collection of Jay M. Goldman

to:
  • Collection of Jay M. Goldman
04 January 2012 by 58.96.77.111 -
Changed line 7 from:
  • [[Rabdologiae_seu_numerationis_per_virgula.pdf
to:
  • Napier, Rabdologiae seu numerationis per vigula, 1628 (first published 1617).
04 January 2012 by 58.96.77.111 -
Changed line 7 from:
to:
  • [[Rabdologiae_seu_numerationis_per_virgula.pdf
04 January 2012 by 58.96.77.111 -
Added lines 27-30:

Personal Collections

Collection of Jay M. Goldman

04 January 2012 by 58.96.77.111 -
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http://www.ami19.org Many photos of calculating machines and mathematical instruments owned by an important French collector.

to:

Arithmetic Machines and Instruments of the C19 Many photos of calculating machines and mathematical instruments owned by an important French collector.

04 January 2012 by 58.96.77.111 -
Added lines 15-21:
 	

Histoire de l’Informatique Wide-ranging gallery of calculators and associated information. [in French] 

Büromaschinen Lexikon Published by Goeller-Verlag the annual office machines dictionary provided a comprehensive illustrated overview of common office equipment for the respective years. This site provides collectors with the information on calculators from that website.[in German]

Specialist websites

Changed lines 26-32 from:

Büromaschinen Lexikon Published by Goeller-Verlag the annual office machines dictionary provided a comprehensive illustrated overview of common office equipment for the respective years. This site provides collectors with the information on calculators from that website.[in German]

Specialist websites

 	

Histoire de l’Informatique Wide-ranging gallery of calculators and associated information. [in French] 

to:
04 January 2012 by 58.96.77.111 -
Changed lines 4-7 from:

Early books

Key websites

to:

Early books

Key websites

Survey websites

Added lines 20-23:

Specialist websites

Changed line 25 from:
Histoire de l’Informatique Wide-ranging gallery of calculators and associated
 information. [in French] 
to:

Histoire de l’Informatique Wide-ranging gallery of calculators and associated information. [in French] 

04 January 2012 by 58.96.77.111 -
Changed lines 12-14 from:

http://www.ami19.org Many photos of calculating machines and mathematical instruments owned by an important French collector.

to:

http://www.ami19.org Many photos of calculating machines and mathematical instruments owned by an important French collector.

Büromaschinen Lexikon Published by Goeller-Verlag the annual office machines dictionary provided a comprehensive illustrated overview of common office equipment for the respective years. This site provides collectors with the information on calculators from that website.[in German]

Changed line 16 from:
 
to:
Histoire de l’Informatique Wide-ranging gallery of calculators and associated
 information. [in French] 
04 January 2012 by 58.96.77.111 -
Changed lines 10-12 from:

Many photos of calculating machines and mathematical instruments owned by an important French collector.

to:

Valéry Monnier’s extraordinary and expert website on the Thomas de Colmar Arithmometer

http://www.ami19.org Many photos of calculating machines and mathematical instruments owned by an important French collector.

04 January 2012 by 58.96.77.111 -
04 January 2012 by 58.96.77.111 -
Added lines 9-14:

Many photos of calculating machines and mathematical instruments owned by an important French collector.

 	
 
04 January 2012 by 58.96.77.111 -
Changed lines 7-8 from:

Rechanmaschinen-Illustrated]: The most comprehensive listing of details about early calculating machines on the web. Based around the classic study Ernst Martin, “Die Rechenmaschinen”, 1925, and translated into English as Ernst Martin, “The Calculating Machines”,MIT Press and The Charles Babbage Institute, USA, “History of Computing” series, 1992.

to:

Rechanmaschinen-Illustrated: The most comprehensive listing of details about early calculating machines on the web. Based around the classic study Ernst Martin, “Die Rechenmaschinen”, 1925, and translated into English as Ernst Martin, “The Calculating Machines”,MIT Press and The Charles Babbage Institute, USA, “History of Computing” series, 1992.

04 January 2012 by 58.96.77.111 -
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Key websites

Deleted lines 7-8:

Key websites

04 January 2012 by 58.96.77.111 -
Changed lines 4-7 from:
to:

Early books Rechanmaschinen-Illustrated]: The most comprehensive listing of details about early calculating machines on the web. Based around the classic study Ernst Martin, “Die Rechenmaschinen”, 1925, and translated into English as Ernst Martin, “The Calculating Machines”,MIT Press and The Charles Babbage Institute, USA, “History of Computing” series, 1992.

Key websites

04 January 2012 by 58.96.77.111 -
Deleted lines 2-68:

http://metastudies.net/pmwiki/uploads/Schickard1.jpg First Devices

http://metastudies.net/pmwiki/uploads/Henrion.png Logarithmic Tables, and Ready Reckoners

http://metastudies.net/pmwiki/uploads/Morland2.png The first “Computer Manual”?

http://metastudies.net/pmwiki/uploads/ButterfieldSector.png Sectors

http://metastudies.net/pmwiki/uploads/Convertiseur.png Conversion Devices

http://metastudies.net/pmwiki/uploads/Everard.jpg Slide Rules

http://metastudies.net/pmwiki/uploads/Thacher.jpg Cylindrical Slide Rules

http://metastudies.net/pmwiki/uploads/SUPREMATHIC.jpg Circular Slide Rules

http://metastudies.net/pmwiki/uploads/Webb.jpg Troncet Type Devices

http://metastudies.net/pmwiki/uploads/Adix.png Keyboard Adding Machines

http://metastudies.net/pmwiki/uploads/ThomasDeColmar.jpg Arithmometers

http://metastudies.net/pmwiki/uploads/Millionair.png True Multiplying Calculators

http://metastudies.net/pmwiki/uploads/MercedesDemo.png Proportional Rack Calculators

http://metastudies.net/pmwiki/uploads/Brunsviga1896.png Pinwheel Calculators

http://metastudies.net/pmwiki/uploads/ComptometerWoodie.png Comptometers

http://metastudies.net/pmwiki/uploads/Curta1-1948.png Curta Calculators

http://metastudies.net/pmwiki/uploads/HerzstarkArithmometer.png Motorised Calculating Machines

http://metastudies.net/pmwiki/uploads/HP35.jpg Electronic Calculators

______

http://metastudies.net/pmwiki/uploads/LightningBooklet.png Ephemerae

04 January 2012 by 58.96.77.111 -
04 January 2012 by 58.96.77.111 -
Added lines 2-70:

http://metastudies.net/pmwiki/uploads/Schickard1.jpg First Devices

http://metastudies.net/pmwiki/uploads/Henrion.png Logarithmic Tables, and Ready Reckoners

http://metastudies.net/pmwiki/uploads/Morland2.png The first “Computer Manual”?

http://metastudies.net/pmwiki/uploads/ButterfieldSector.png Sectors

http://metastudies.net/pmwiki/uploads/Convertiseur.png Conversion Devices

http://metastudies.net/pmwiki/uploads/Everard.jpg Slide Rules

http://metastudies.net/pmwiki/uploads/Thacher.jpg Cylindrical Slide Rules

http://metastudies.net/pmwiki/uploads/SUPREMATHIC.jpg Circular Slide Rules

http://metastudies.net/pmwiki/uploads/Webb.jpg Troncet Type Devices

http://metastudies.net/pmwiki/uploads/Adix.png Keyboard Adding Machines

http://metastudies.net/pmwiki/uploads/ThomasDeColmar.jpg Arithmometers

http://metastudies.net/pmwiki/uploads/Millionair.png True Multiplying Calculators

http://metastudies.net/pmwiki/uploads/MercedesDemo.png Proportional Rack Calculators

http://metastudies.net/pmwiki/uploads/Brunsviga1896.png Pinwheel Calculators

http://metastudies.net/pmwiki/uploads/ComptometerWoodie.png Comptometers

http://metastudies.net/pmwiki/uploads/Curta1-1948.png Curta Calculators

http://metastudies.net/pmwiki/uploads/HerzstarkArithmometer.png Motorised Calculating Machines

http://metastudies.net/pmwiki/uploads/HP35.jpg Electronic Calculators

______

http://metastudies.net/pmwiki/uploads/LightningBooklet.png Ephemerae

04 January 2012 by 58.96.77.111 -
Added lines 1-2:

This is a collection of electronic resources which form part of the background to the collected objects and associated analysis.


Page last modified on 14 January 2016