Cordingley's computometer, adding machine, c 1900.
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Picture Number:10327830 Credit:Science Museum/Science & Society Picture Library
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Caption:
The Cordingley adding machine was one of several simple devices introduced around 1900. It is based on Blaise Pascal's (1623-1662) design of 250 years earlier.
In Collection of: Science & Society Picture Library Subject(s) > Science & Technology > MathematicsRelated to:
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Appears in: Engaging brains; pressing buttons
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