Burroughs Experimental Adding Machine

This model for a ten-key printing electric adding machine has a metal mechanism with tan and dark tan plastic keys and a rubber carriage and rubber feet. It adds eight digit numbers, and has a 10-column printout (one column may be of symbols). There is a block of nine gray plastic number keys with a 0 bar below. Two dark brown, square function keys to the left of the digit keys are marked “C” and “X.” Three similar keys rightt of the digit keys are marked “ST”, “*(/)TOT”, and “-.” A fourth function key on the right is unmarked. There is a place indicator, a 2-1/4” carriage, and a black ribbon. No cover or cord.
A red tag attached to the machine reads: PATENT DEPARTMENT (/) #161. A metal tag on the left side reads: 31794A.
This model, along with 1982.0794.28, was #161 in the collections of the Patent Division of Burroughs Corporation. The accession file suggests that this was the invention of Althans, presumably Emile H. Althans of Burroughs.
Accession file.
Currently not on view
Object Name
adding machine model
date made
ca 1950
Burroughs Adding Machine Company
Physical Description
metal (overall material)
plastic (overall material)
rubber (overall material)
overall: 15.6 cm x 19 cm x 31 cm; 6 5/32 in x 7 15/32 in x 12 7/32 in
place made
United States: Michigan, Detroit
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 Burroughs Corporation
Additional Media

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