Comptometer Section - Super Totalizer

This model has two columns of white plastic keys and one column of green keys. Odd-numbered digit keys are concave, and even-numbered ones, flat. At the front, there are two aluminum numeral wheels on one shaft, and two on a second shaft in front of the first one. Two metal levers are on the right side, perhaps for zeroing. A shaft with a rubber handle is on the left side at the back. This is a study model of the supertotalizer motor-driven double register Comptometer. This form of Comptometer was invented by J. A. V. Turck. According to a label received with the collection, this model was built in 1943. It has no case.
Accession Journal 1991.3107.06.
Currently not on view
Object Name
adding machine section
date made
Felt & Tarrant Manufacturing Company
Physical Description
plastic (overall material)
aluminum (overall material)
steel (overall material)
rubber (overall material)
overall: 19 cm x 20 cm x 34 cm; 7 15/32 in x 7 7/8 in x 13 3/8 in
place made
United States: Illinois, Chicago
ID Number
catalog number
accession number
See more items in
Medicine and Science: Mathematics
Science & Mathematics
Adding Machines
Data Source
National Museum of American History, Kenneth E. Behring Center
Credit Line
Gift of Victor Comptometer Corporation
Additional Media

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