Burroughs Adding Machine

This full-keyboard printing electric adding machine has a dark brown metal case and square plastic key covers. An operating bar is on the right, next to a column of function keys, and a column of 1/8 to 7/8 fraction keys. The next two columns contain a total of 15 keys, numbered from 1 to 15. There are then seven columns of digit keys, with nine keys in each column. The narrow carriage at the top of the machine has a serrated edge for tearing the paper tape. The paper tape, paper tape holder, and handle are separate.
The machine is marked on the front: Burroughs. A red tag attached to it reads: PATENT DEPT. (/) #281. A metal tag attached at the lower front reads: D3555.
Currently not on view
date made
ca 1950
Burroughs Adding Machine Company
place made
United States: Michigan, Detroit
Physical Description
plastic (overall material)
metal (overall material)
rubber (overall material)
paper (overall material)
overall: 22.5 cm x 23 cm x 34.2 cm; 8 27/32 in x 9 1/16 in x 13 15/32 in
ID Number
catalog number
accession number
Credit Line
Gift of Burroughs Corporation
See more items in
Medicine and Science: Mathematics
Science & Mathematics
Adding Machines
Data Source
National Museum of American History


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