Adding Machine Section, Comptometer Model E
date: label: date made
content: ca 1913
name: label: maker
content: Felt & Tarrant Manufacturing Company
notes: label: Description
content: This model of a section of a full-keyboard non-printing adding machine has two complete columns of keys and two partial columns. The partial columns are in the middle, and the total number of keys is 23. The key tops in the two right columns are white, and those on the left are black. Complementary digits are indicated. The keys are alternately concave (odd digits) and flat (even digits). The model also includes a mechanism, numeral wheels, three result windows, and three decimal markers. It has a glass case with a wooden base. Subtraction levers are between the rows of keys and a zeroing lever is on the right. Just in back of the digit keys, on the right, is a white key with a shorter key stem.
label: Description
content: The model has a metal tag in the back of the keyboard with a list of patent dates. The last date is OCT.7.13. Some images of the model whow it with the incorrect catalog number 273177 painted on the front.
label: Description
content: This machine was given to the Smithsonian in 1914 by Felt & Tarrant Manufacturing company.
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 and Tarrant Manufacturing Company
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: MA.286083
label: catalog number
content: 286083
label: accession number
content: 57775
objectType: label: Object Name
content: adding machine section
physicalDescription: label: Physical Description
content: steel (overall material)
label: Physical Description
content: plastic (overall material)
label: Physical Description
content: wood (overall material)
label: Physical Description
content: glass (overall material)
label: Measurements
content: overall: 17.9 cm x 16 cm x 42.4 cm; 7 1/16 in x 6 5/16 in x 16 11/16 in