This object was collected by Brooklyn high school teacher and historian of mathematics L. Leland Locke and held by the Museums of the Peaceful Arts in New York City before coming to the Smithsonian. The mechanism is for entering numbers into a Millionaire calculating machine. A metal frame painted black has six silver-colored numeral wheels that are set by moving six levers of the same color. Six perforated metal ribbons are moved by the levers and in turn drive the numeral wheels.
Compare to 1986.3114.01.
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