Calculating Machine Components


These objects were collected by Brooklyn high school teacher and historian of mathematics L. Leland Locke. The metal rings come in three sizes. Seventeen are .5 cm. in diameter (one of these has been cut), six are .8 cm. in diameter, and four are 1.3 cm. in diameter.

Location: Currently not on view

Subject: Mathematics


See more items in: Medicine and Science: Mathematics, Calculating Machines, Science & Mathematics


Exhibition Location:

Credit Line: Gift of L. Leland Locke

Data Source: National Museum of American History

Id Number: 1983.3003.042Nonaccession Number: 1983.3003Catalog Number: 1983.3003.042

Object Name: calculating machine components

Physical Description: metal (overall material)Measurements: overall: 2.7 cm x 1.1 cm x 1.1 cm; 1 1/16 in x 7/16 in x 7/16 in


Record Id: nmah_689915

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