Controller Calculating Machine Components

Description
These objects were collected by Brooklyn high school teacher and historian of mathematics L. Leland Locke. Dimensions are for each of the seven components. Each is a steel shaft with a brass piece on the shaft with two notched wheels on it. One object has a second brass piece on it with one small notched wheel. These objects are like1983.3003.21, but have a longer shaft.
Location
Currently not on view
maker
Controller Company
place made
United States: New York, New York
Physical Description
steel (overall material)
brass (overall material)
Measurements
overall: 3 cm x 11 cm x 3 cm; 1 3/16 in x 4 11/32 in x 1 3/16 in
ID Number
1983.3003.020
nonaccession number
1983.3003
catalog number
1983.3003.020
Credit Line
Gift of L. Leland Locke
subject
Mathematics
See more items in
Medicine and Science: Mathematics
Science & Mathematics
Calculating Machines
Data Source
National Museum of American History