Burroughs Class 4 Adding Machine Section

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This 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 with a felt bottom. The case is open on one side. Thesingle column of black plastic keys has keys numbered 1 to 9. Also part of the model are a white repeat key, part of a carriage, a paper tape holder, two numeral wheels at the front, and a metal handle.
The model has a metal support that attaches to a wooden base. This is model #243 from the Patent Division of Burroughs Corporation. The Burroughs Class 4 was introduced in 1912.
Currently not on view
date made
ca 1912
Burroughs Adding Machine Company
place made
United States: Michigan, Detroit
Physical Description
plastic (overall material)
metal (overall material)
wood (overall material)
felt (overall material)
overall: 46 cm x 50 cm x 21.6 cm; 18 1/8 in x 19 11/16 in x 8 1/2 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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