The mechanism of the Pascaline calculator of Blaise Pascal as detailed in this page of the famous Encyclopedia by Diderot and D’Alembert in its first folio edition published in 1759.1 The page has been hand coloured, probably subsequent to publication.


1 Denis Diderot and Jean le Rond d’Alembert, Encyclopédie ou Dictionnaire raisonné des sciences, des arts et des métiers, Société de Gens de lettres, 1st edition, vol. 22, 1759. (↑)

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