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 metal frame contains eight key stems with white plastic keys. A numeral wheel is at the top of the keys. The metal strip immediately below the keys is painted green. The key stems are tied together with string.
Compare 1983.3003.09 and 1983.3003.40. May be from 311948.
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