Burroughs Adding Machine

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This full-keyboard printing electric adding machine has a tan metal case and plastic keys. The keyboard includes (going from left to right):
1. A column of 12 keys labeled with three-letter abbreviations for the months of the year.
2. Two columns of digit keys, each having the digits from 1 to 9.
3. One column of nine keys with abbreviations for various financial transactions such as BAL, J/E, C/R, and P/J.
4. Nine columns of digit keys, each having the digits from 1 to 9.
5. Two columns of function keys and bars.
The printing mechanisms are at the back of the machine. Nine of the fifteen type bars print the result. The other six indicate dates and special characters.
The machine is marked on the back: Burroughs. A red paper tag attached to it reads: PATENT DEPT. (/) 338. A small metal tag attached to the back reads: SERIES P (/) BURROUGHS CORPORATION. . . . The machine is marked on the front in pencil: Transfer totals. A metal tag attached to the object reads: DONATED TO (/) The Smithsonian Institution (/) by (/) Burroughs Corporation.
The Burroughs Series P was introduced in 1950.
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)
overall: 22.1 cm x 32 cm x 47.5 cm; 8 11/16 in x 12 19/32 in x 18 11/16 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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