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Easy…and Accurate: Mechanical Calculators
Sumador Chino
Appears In:
Easy…and Accurate: Mechanical Calculators
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Details
Description
Date Introduced
1900 ca.
Photographer
Richards, Mark
Dimensions
2 3/4 x 8 1/2 x 13 in.
Credit Line
Gift of Jim Rogers
Copyright Owner
© Mark Richards
Location
Mexico
Keywords
Business; Mexico; Napier's Bones; Hand calculation
Object ID
X10.80
A desktop version of Napier's bones.