Burroughs Calculator Sample, Sterling Currency
date: label: date made
content: ca 1920
name: label: maker
content: Burroughs Adding Machine Company
notes: label: Description
content: In 1911 the Burroughs Adding Machine Company introduced a key-driven adding machine much like the Comptometer made by Felt & Tarrant Manufacturing Company. The Burroughs calculator, as the new machine was called, performed ordinary decimal arithmetic. Burroughs inventors soon designed special versions of the calculator to solve other problems. This is the model or sample for use with British currency.
label: Description
content: The machine has a black metal cover, black and white plastic keys, and a dark green metal keyboard under the keys. There are five columns of keys. The rightmost, as well as the three leftmost, are numbered from 1 to 9, with complementary digits indicated. The second column from the right has 9 “1” keys, with the complementary digit 0 on each key (hence the two right columns can be used to add shillings). All the odd numbered keys are concave and the even numbered keys are flat. The numeral wheels are at the front. The model has no handle.
label: Description
content: This is one of four machine that is part of Burroughs Patent Model 231, although it has no patent tag.
label: Description
content: The black cover is too big for this machine or the others in Burroughs Patent Model 231.
label: Description
content: Compare 1982.0794.47, 1982.0794.48, and 1989.0794.49.
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
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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: 1982.0794.89
label: catalog number
content: 1982.0794.89
label: accession number
content: 1982.0794
objectType: label: Object Name
content: adding machine model
physicalDescription: label: Physical Description
content: plastic (overall material)
label: Physical Description
content: metal (overall material)
label: Measurements
content: overall: 13 cm x 16.2 cm x 29.2 cm; 5 1/8 in x 6 3/8 in x 11 1/2 in