Controller Calculating Machine Components

Controller Calculating Machine Components

Usage conditions apply
These objects were collected by Brooklyn high school teacher and historian of mathematics L. Leland Locke. Dimensions are for each of the nine components. Each is a steel shaft that is round for most of its length but rectangular at one end. Several pieces may fit along a shaft.
Compare to 311948.
Currently not on view
Object Name
calculating machine components
Controller Company
place made
United States: New York, New York City
Physical Description
metal (overall material)
overall: 2.8 cm x 26 cm x 2.8 cm; 1 3/32 in x 10 1/4 in x 1 3/32 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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