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Controller Calculating Machine Component

Controller Calculating Machine Component

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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.
Currently not on view
Object Name
calculating machine component
Controller Company
place made
United States: New York, New York City
Physical Description
plastic (overall material)
ferrous metal (overall material)
overall: 7.5 cm x 2.5 cm x 20 cm; 2 15/16 in x 31/32 in x 7 7/8 in
ID Number
nonaccession number
catalog number
Credit Line
Gift of L. Leland Locke
See more items in
Medicine and Science: Mathematics
Science & Mathematics
Calculating Machines
Data Source
National Museum of American History
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