Burroughs Class 4 Adding Machine Section

This model of a section of a Burroughs Class 4 adding machine has a metal mechanism with a black metal case and handle, a black wooden knob on the handle, and a dark brown wooden base. The single column of black plastic keys with has keys numbered 1 to 9. There is a white repeat key, part of a carriage, and one spool of a ribbon.The side is of metal. At the front are two black numeral dials, and on the right is a handle. The model fits on two screws in the wooden base, but is not held tightly.
This is model #242 from the Patent Division of Burroughs Corporation. The Burroughs Class 4 was introduced in 1912. A metal tag attached to the object reads: DONATED TO (/) The Smithsonian Institution (/) by (/) Burroughs Corporation.
Currently not on view
Object Name
adding machine section
date made
ca 1912
Burroughs Adding Machine Company
Physical Description
plastic (overall material)
metal (overall material)
wood (overall material)
paper (overall material)
glass (overall material)
overall: 37 cm x 50 cm x 22 cm; 14 9/16 in x 19 11/16 in x 8 21/32 in
place made
United States: Michigan, Detroit
ID Number
catalog number
accession number
See more items in
Medicine and Science: Mathematics
Science & Mathematics
Adding Machines
Data Source
National Museum of American History, Kenneth E. Behring Center


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