Addometer adding machine with eight stylus-operated dials, c 1925.
3 4 c m
40cm
actual image size: 32cm x 26cm

Addometer adding machine with eight stylus-operated dials, c 1925.

Hills, Jennie

© Science Museum / Science & Society Picture Library

Description

Made by the Reliable Typewriter and Adding Machine Company of Chicago, USA, the Addometer was a popular adding machine based on Blaise Pascal's (1623-1662) design of 250 years earlier.
 

Artist

 

Image Ref.

10327832
 

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