Millionaire Calculating Machine Components

Millionaire Calculating Machine Components

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These objects were collected by Brooklyn high school teacher and historian of mathematics L. Leland Locke. Each of these seven small brass pieces is hollow with two gearwheels protruding from it. They resemble components on the shaft of 1983.3003.18. Also compare to 311948.
Dimensions given are those of each object.
Currently not on view
Object Name
calculating machine components
Hans W. Egli
place made
Switzerland: Zürich, Zurich
Physical Description
brass (overall material)
overall: 2 cm x 3 cm x 2 cm; 25/32 in x 1 3/16 in x 25/32 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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