Burroughs Duplex Subtractor
date: label: date made
content: ca 1940
name: label: maker
content: Burroughs Adding Machine Company
notes: label: Description
content: This black full-keyboard printing adding machine has 13 columns of black and white round plastic keys above an unpainted steel keyboard. On the right of the number keys are a variety of function keys. One column of these refers to register 1, the other to register 2. In back of the keyboard is a wide carriage, with a place for a paper tape. On the top are two sliding steel markers, one missing a piece. No cord or handle.
label: Description
content: A red paper tag attached to the machine reads: PATENT DEPT. (/) #176. A metal tag with the object reads: B.A.M.CO. (/) MODEL (/) NO 1020. The machine is marked on the front: Burroughs. The mark has a hook over the “g” in Burroughs. A paper sheet received with the machine reads: Do not depress Register #1 motor (/) bars while operating machine as Register (/) wheels do not shift properly and machine (/) will lock on half cycle. A metal tag attached to the object reads: DONATED TO (/) The Smithsonian Institution (/) by (/) Burroughs Corporation.
label: Description
content: The machine is associated with Burroughs inventor Ernst Racz. It was model #176 in the collection of the Patent Division of Burroughs Corporation.
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: 1982.0794.31
label: catalog number
content: 1982.0794.31
label: accession number
content: 1982.0794
objectType: label: Object Name
content: adding machine
physicalDescription: label: Physical Description
content: plastic (overall material)
label: Physical Description
content: paper (overall material)
label: Physical Description
content: metal (overall material)
label: Measurements
content: overall: 27.6 cm x 49 cm x 38.5 cm; 10 7/8 in x 19 9/32 in x 15 5/32 in