Burroughs Series P Adding Machine

This full-keyboard printing electric adding machine has a black metal case, black and white color-coded round plastic keys, a rubber carriage, rubber feet, and a metal paper tape holder at the back. There is a hole for a handle but no handle. There are ten columns of keys, with nine keys in each column, as well as a column with five function keys and a large “+” bar.
A red paper tag attached to the machine reads: PATENT DEPT. (/) #208. A metal tag attached to the keyboard reads: 139-243. The machine is marked on the front: Burroughs. A white paper tag attached to the object reads: STY 10 (/) TALLY ROLL (/) MACH (/) TAG (/) 139-243. A metal tag attached to the object reads: DONATED TO (/) The Smithsonian Institution (/) by (/) Burroughs Corporation.
This example was #208 in the collection of the Patent Division of Burroughs Corporation. The Burroughs Series P was introduced in 1949, and this machine presumably dates from about that time.
Currently not on view
Object Name
adding machine
date made
ca 1949
Burroughs Adding Machine Company
Physical Description
plastic (overall material)
paper (overall material)
rubber (overall material)
metal (overall material)
overall: 26.2 cm x 48 cm x 45.7 cm; 10 5/16 in x 18 29/32 in x 18 in
place made
United States: Michigan, Detroit
ID Number
catalog number
accession 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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