File:Vintage Bowmar Electronic Pocket Calculator, Model MX-50 (aka

Category:Calculator collection by Joe Haupt (from Flickr stream) - Wikimedia Commons

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File:Vintage Craig Electronic Pocket Calculator, Model 4501, Made by Bowmar for Craig (Bowmar Model 901B), Made in the USA, New Price Was 239.95 USD, Circa 1971 (12092485315).jpg - Wikimedia Commons

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