Magic-Brain Calculator (2) - Calculator - Computing History

The MagicBrain Calculator was manufactured in 1955 by the Chadwick Company, this early calculator was operated using a stylus, and could perform addition, subtraction and multiplication calculation

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Magic Brain Calculator-original Pocket Math Device-1960s-made in

Baby Calculator American Stationer

Magic Brain Calculator - A vintage mechanical addiator type

Pocket Calculating Devices

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