Burroughs 520 Calculator
date: label: date made
content: ca 1913
name: label: maker
content: Burroughs Adding Machine Company
notes: label: Description
content: This full-keyboard non-printing key-driven adding machine has twelve columns of plastic keys numbered from 1 to 9. The rightmost column has 10 and 11 keys at the top and 1/4, 1/2, and 3/4 keys below. Fourteen result wheels are at the front. A black cloth cover and numerous spare parts are present.
label: Description
content: A red paper tag attached to the machine reads: PATENT DEPT. (/) #232. The machine is marked on the front: Burroughs (/) DETROIT, U.S.A.. A metal tag below the keys reads: 209662. A white paper tag attached to the machine reads: Reference Machine (/) 9 Columns (/) Style 520 - 1/4 Pence Const. (/) Style 13. A mark on the cover reads: BURROUGHS.
label: Description
content: This was model 232 from the collection of the Patent Division of Burroughs Corporation. There are numerous associated parts.
label: Description
content: The shape of the front of this instrument is that of an early Burroughs calculator. The number of columns would be that of a Burroughs model 550, although the tag refers to a Burroughs 520. From 1915, the shape of the front of the Burroughs calculator was quite different.
label: Location
content: Currently not on view
place: label: place made
content: United States: Michigan, Detroit
topic: label: Subject
content: Mathematics
setName: label: See more items in
content: Medicine and Science: Mathematics
label: See more items in
content: Adding Machines
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content: Science & Mathematics
creditLine: label: Credit Line
content: Gift of Burroughs Corporation
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1982.0794.50
label: catalog number
content: 1982.0794.50
label: accession number
content: 1982.0794
objectType: label: Object Name
content: adding machine
physicalDescription: label: Physical Description
content: metal (overall material)
label: Physical Description
content: plastic (overall material)
label: Physical Description
content: paper (overall material)
label: Physical Description
content: cloth (overall material)
label: Measurements
content: average spatial: 17.2 cm x 30.5 cm x 36.2 cm; 6 25/32 in x 12 in x 14 1/4 in