1960s Manual Pocket Calculator

This great little vintage pocket calculator is from the 1960s before electronic calculators became more compact and affordable. Does addition,

Calculator - Wikipedia, PDF, Calculator

Monroe calculator 1960 - electric but also with manual devices such as an exposed operating crank and …

Empire of the Sum: The Rise and Reign of the Pocket Calculator

The History Of The Calculator

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Baby Calculator Company, est. 1923 - Made-in-Chicago Museum

1960s Calculator - Canada

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Sharp Calculators – sharpcalculators

Vintage Calculators, Vintage Electronics, Electronics - PicClick AU

$11 2018 Vintage Tower Pocket Calculator w/Stylus - made in West Germany, #1973644285