CHM Revolution
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The Original “Pocket Calculator”
Schoty
Appears In:
The Original “Pocket Calculator”
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Details
Description
Date Introduced
1920 ca.
Photographer
Richards, Mark
Dimensions
2 1/4 x 14 x 7 3/4 in.
Credit Line
Gift of Warren Yogi
Copyright Owner
© Mark Richards
Location
Russia
Keywords
Hand calculation; Mechanical calculation; Abacus
Object ID
102630015
Schoty calculators use varied bead colors and different numbers of beads on the rods.