Wooden Box Model Comptometer
date: label: date made
content: 1906
name: label: maker
content: Felt & Tarrant Manufacturing Company
notes: label: Description
content: This key-driven non-printing adding machine has a wooden case and eight columns of color-coded plastic keys. It is a relatively late example of a Comptometer with a wooden (rather than a metal) case.
label: Description
content: The key tops are flat and made of plastic. They are colored black and white, with complementary digits indicated in red. There is a spring around each key stem, and the stems become progressively longer as the digits increase. Eight subtraction levers are in front of the keys and eight decimal markers are attached to a metal plate painted black, which is in front of these. A row of nine windows in the plate reveals number wheels which represent totals and differences. The zeroing mechanism is a knob with a release lever on the right side.
label: Description
content: The serial number, stamped on the front of the machine under the decimal markers, is 5021. A metal tag screwed to the top of the machine behind the keyboard is marked: TRADE COMPTOMETER MARK (/) PAT’D (/) JUL.19.87 JUN. 11. 89.(/) OCT.11.87 NOV.25.90 (/) JAN.8.89 DEC.15.91. (/) SEP.22.96 (/) Felt & Tarrant Mfg. Co. (/) CHICAGO
label: Description
content: According to other records, this machine was sold in 1906 to H. Messersmith Company of Buffalo, New York, and traded in in 1910 for a Model C. The machine became part of the collections of Felt & Tarrant Manufacturing Company and was exhibited at the Century of Progress Exhibition in Chicago in 1933.
label: Description
content: Compare to 1987.0107.04.
label: Description
content: Reference:
label: Description
content: Felt & Tarrant, Accession Journal 1991.3107.06.
label: Location
content: Currently not on view
place: label: place made
content: United States: Illinois, Chicago
topic: label: Subject
content: Mathematics
setName: label: See more items in
content: Medicine and Science: Mathematics
label: See more items in
content: Adding Machines
label: See more items in
content: Science & Mathematics
creditLine: label: Credit Line
content: Gift of Victor Comptometer Corporation
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: MA.323650
label: maker number
content: 5021
label: catalog number
content: 323650
label: accession number
content: 250163
objectType: label: Object Name
content: adding machine
physicalDescription: label: Physical Description
content: plastic (overall material)
label: Physical Description
content: wood (overall material)
label: Physical Description
content: metal (overall material)
label: Measurements
content: overall: 13.3 cm x 20.8 cm x 36.4 cm; 5 1/4 in x 8 3/16 in x 14 11/32 in