National Model 11EN Adding Machine
date: label: date made
content: 1950
name: label: maker
content: Allen Wales Adding Machine Division, the National Cash Register Company
notes: label: Description
content: This full-keyboard listing electric adding machine has a gray metal frame and ten columns of green and white color-coded plastic keys. Behind the light green keyboard is a row of ten number dials. Right of the keyboard are square keys (and an addition bar). The”*” key is for totaling, the S for subtotals, the “-” for subtraction, the “+” for addition, and the “#” for non-add. The “C” is on a clearance key. The machine prints these symbols, except in the cases of addition and clearance. Subtracted numbers are in red. There also is a repeat lever. Behind the keyboard and the dials to the left is a lever controlling the printing mechanism. This mechanism and the narrow paper tape, fixed carriage, and motor are at the back. There appear to be 11 keys in the printing mechanism, one for a symbol and the other for digits.
label: Description
content: The machine is marked on the front: ALLEN WALES. It is marked on a metal tag at the base of the front: 11EN272043. It is marked on the back of the machine: MANUFACTURED AT (/) ITHACA, NEW YORK, U.S.A. BY THE (/) ALLEN-WALES ADDING MACHINE DIVISION OF (/) THE NATIONAL CASH REGISTER COMPANY (/) DAYTON, OHIO. U.S.A. (/) ALLEN-WALES. It is marked on a tag at the base of the back: ALLEN WALES MODEL E.
label: Description
content: This is model #304 from the Patent Division of Burroughs Corporation.
label: Description
content: Compare to 1986.0397.01.
label: Description
content: Reference:
label: Description
content: <I>American Office Machines Research Service</I>, section 3.21, 1938, p. 4.
label: Location
content: Currently not on view
place: label: place made
content: United States: New York, Ithaca
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 Burroughs Corporation
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1982.0794.79
label: catalog number
content: 1982.0794.79
label: accession number
content: 1982.0794
objectType: label: Object Name
content: adding machine
physicalDescription: label: Physical Description
content: paper (overall material)
label: Physical Description
content: plastic (overall material)
label: Physical Description
content: metal (overall material)
label: Physical Description
content: rubber (overall material)
label: Measurements
content: overall: 20.4 cm x 26.5 cm x 43 cm; 8 1/32 in x 10 7/16 in x 16 15/16 in