The 'Multiplicateur Enfantin' ready reckoner, c 1880.

Hills, Jennie

 
The 'Multiplicateur Enfantin' ready reckoner, c 1880.
4 0 c m
 
34cm
actual image size: 26cm x 32cm

Description

Invented by C L Chambon, the 'Multiplicateur Enfantin' automatic calculator showed multiplication tables up to 50 times 28.

Image Details

Artist
 
Image Ref.
 
10327828

© Science Museum / Science & Society Picture Library

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