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GEM calculator converted for Indian currency, 1912.

Hills, Jennie

 
GEM calculator converted for Indian currency, 1912.
4 0 c m
 
34cm
actual image size: 26cm x 32cm

Description

The GEM calculator was originally patented in 1890 as a simple device for the addition of English money. Numbers are added by inserting a stylus against the figure and pulling downward. This later version is adapted for Indian currency.

Image Details

Artist
 
Image Ref.
 
10327831

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