Victor Tallymaster Mark V Adding Machine

This ten-key printing electric adding machine has a mustard-yellow plastic frame, with yellow plastic keys and a front handle. In addition to a block of nine number keys with a 0 bar below, it has a bar on the right, a place indicator above the keyboard, and two levers above this. The printing mechanism and motor are at the back. One can enter numbers of up to seven digits and print out eight-digit results. There is no paper tape installed, although a separate paper tape was received with this machine and 1991.0791.01. A white electric cord extends from the back of the machine. The top half of the case may be removed by releasing levers on each side.
The machine is marked above the keyboard: Tallymaster (/) MARK V (/) BY VICTOR. The bottom of the machine is marked: MOD. 57 57 50 (/) SER. 3283-303.
The machine was purchased by the donor for his collection. According to Darby, Victor introduced the Tallymaster as “a small, ten-key decorator-designed series of machine priced at a level that would make sense to husband and wife harassed by mounting home paperwork.”
E. Darby, It All Adds Up: The Growth of Victor Comptometer Corporation, Victor Comptometer Corporation, 1968, p. 172.
Currently not on view
Object Name
adding machine
date made
ca 1970
Victor Comptometer Corporation
Physical Description
plastic (overall material)
rubber (overall material)
metal (overall material)
overall: 16.9 cm x 19.8 cm x 33 cm; 6 21/32 in x 7 25/32 in x 13 in
place made
United States: Illinois, Chicago
ID Number
maker number
accession number
catalog number
Science & Mathematics
Adding Machines
See more items in
Medicine and Science: Mathematics
Adding Machines
Data Source
National Museum of American History, Kenneth E. Behring Center
Credit Line
Gift of David Rabinow
Additional Media

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