Controller Calculating Machine Components


These objects were collected by Brooklyn high school teacher and historian of mathematics L. Leland Locke. They are five banks for an adding machine. The metal frame of each bank contains nine key stems with white plastic keys, a numeral wheel at the top of the keys, and related mechanisms. The metal strip below the keys is painted green. The key stems are held in place with a string.

Compare to 1983.3003.08 and 1983.30033.09. See also 311948.

Maker: Controller Company

Location: Currently not on view

Place Made: United States: New York, New York City

Subject: Mathematics


See more items in: Medicine and Science: Mathematics, Calculating Machines, Science & Mathematics


Exhibition Location:

Credit Line: Gift of L. Leland Locke

Data Source: National Museum of American History

Id Number: 1983.3003.040Nonaccession Number: 1983.3003Catalog Number: 1983.3003.040

Object Name: calculating machine components

Physical Description: plastic (overall material)metal (overall material)Measurements: overall: 7 cm x 2.5 cm x 20 cm; 2 3/4 in x 31/32 in x 7 7/8 in


Record Id: nmah_689913

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