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Ensign Calculating Machine Component

Ensign Calculating Machine Component

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These objects were 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 steel component has nine numeral wheels arranged on a shaft, which in turn is linked to a larger shaft, various springs, and larger discs.
Museum of the Peaceful Arts, 1927, vol. 6.
Currently not on view
Object Name
calculating machine component
Ensign Manufacturing Company
place made
United States: Massachusetts, Boston
Physical Description
metal (overall material)
overall: 9.8 cm x 33 cm x 10 cm; 3 27/32 in x 13 in x 3 15/16 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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