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.
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