Calculating Machine Components
notes: label: Description
content: This object was collected by Brooklyn high school teacher and historian of mathematics L. Leland Locke. A steel shaft holds steel and brass discs six centimeters in diameter. Some discs hold pins and have partially toothed edges. Others are thinner, and may go only part way around. These discs also have a toothed edge and may have a protrusion like those on pinwheel calculating machines.
label: Location
content: Currently not on view
topic: label: Subject
content: Mathematics
setName: label: See more items in
content: Medicine and Science: Mathematics
label: See more items in
content: Calculating Machines
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content: Science & Mathematics
creditLine: label: Credit Line
content: Gift of L. Leland Locke
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1983.3003.032
label: nonaccession number
content: 1983.3003
label: catalog number
content: 1983.3003.032
objectType: label: Object Name
content: calculating machine component
physicalDescription: label: Physical Description
content: metal (overall material)
label: Measurements
content: overall: 16 cm x 8 cm x 8 cm; 6 5/16 in x 3 5/32 in x 3 5/32 in