Adding Machine Section, Comptometer Model C
date: label: date made
content: ca 1910
name: label: maker
content: Felt & Tarrant Manufacturing Company
notes: label: Description
content: This adding machine section has a glass case with a wooden base that holds a steel mechanism for two columns of white keys. The keys are covered with white plastic key tops that have both digits and complements of digits. The keys are alternately concave (odd digits) and flat (even digits). There are three decimal markers and two subtraction levers. Three number wheels are at the front, and a zeroing crank is on the right.
label: Description
content: Felt & Tarrant Manufacturing Company began manufacturing the Model C Regular Comptometer in 1909 and the Model C Light Comptometer in 1911. It gave this section to the Smithsonian in 1912.
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 Felt & Tarrant Manufacturing Company
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: MA.273177
label: catalog number
content: 273177
label: accession number
content: 54382
objectType: label: Object Name
content: adding machine section
physicalDescription: label: Physical Description
content: steel (overall material)
label: Physical Description
content: glass (overall material)
label: Physical Description
content: wood (overall material)
label: Physical Description
content: plastic (overall material)
label: Measurements
content: overall: 17.5 cm x 16 cm x 42.2 cm; 6 7/8 in x 6 5/16 in x 16 5/8 in