Burroughs Series M Bookkeeping Machine

This relatively late Burroughs bookkeeping machine has a gray metal cover. In the front are two sets of digit keys, one white and one black, as well as various functions keys. In front of these are space return, motor tab, and full cents bars, as well an an unlabeled bar. Behind the two rows of digit keys is a QWERTY keyboard with four rows of keys. Symbols indicated on some of these keys are unconventional. A lever at the right sets the machine for different registers. A wide carriage is behind the keyboard. The machine has an electric motor.
A mark on the front reads: Burroughs. A mark on a red paper tag attached to the machine reads: PATENT DEPT. (/) #212. A metal tag screwed to the front of the machine reads: A3451.
The Burroughs Series M was introduced in 1951. This example was in the collections of the Patent Division of Burroughs Corporation.
Burroughs Corporation Papers, Charles Babbage Institute, University of Minnesota, Minneapolis, Minnesota.
Currently not on view
Object Name
calculating machine
bookkeeping machine
date made
ca 1951
Burroughs Adding Machine Company
Physical Description
metal (overall material)
rubber (overall material)
plastic (overall material)
overall: 38 cm x 74 cm x 70 cm; 14 31/32 in x 29 1/8 in x 27 9/16 in
place made
United States: Michigan, Detroit
ID Number
catalog number
accession number
See more items in
Medicine and Science: Mathematics
Science & Mathematics
Bookkeeping Machines
Data Source
National Museum of American History, Kenneth E. Behring Center


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