Torpedo Adding Machine
date: label: date made
content: 1935
name: label: maker
content: Torpedo-Werke A.G.
notes: label: Description
content: This German key-driven adding machine has a black plastic case and eight columns of steel keys covered with black and white plastic key covers. The columns run from 1 to 5 (not from 1 to 9). Keys for odd digits are deep, and those for even digits relatively shallow. The metal zeroing bar is on the left, and nine windows in the front show the result. Decimal places are marked along the windows. There machine has no provision for subtraction. The bottom has black felt pads. The serial number marked on the bottom of the machine is 005105.
label: Description
content: This example comes from the collection of Felt & Tarrant Manufacturing Company.
label: Description
content: Reference:
label: Description
content: E. Martin, <I>Die Rechenmaschinen und ihre Entwicklungsgeschichte</I>, [1925 edition with later supplement], p. 457. This source says the machine was introduced in 1931.
label: Location
content: Currently not on view
place: label: place made
content: Germany: Hesse, Frankfurt
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 Victor Comptometer Corporation
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: MA.323613
label: accession number
content: 250163
label: catalog number
content: 323613
objectType: label: Object Name
content: adding machine
physicalDescription: label: Physical Description
content: steel (overall material)
label: Physical Description
content: felt (overall material)
label: Physical Description
content: plastic (overall material)
label: Measurements
content: overall: 10.5 cm x 20 cm x 15 cm; 4 1/8 in x 7 7/8 in x 5 29/32 in