This model of a section of a Burroughs Class 9 adding machine has a steel mechanism in a steel framework painted brown. It has one column of black plastic number keys, and one column of red and white plastic function keys. There is part of a carriage, part of a printing mechanism, and a place for one spool of a ribbon. The mechanism is on a metal support that fits into a wooden stand. There is no cover for the sides.
The Burroughs Class 9 was introduced in 1926. This is model #241 Patent Division of Burroughs Corporation, although there is no departmental tag. A metal tag attached to the object reads: DONATED TO (/) The Smithsonian Institution (/) by (/) Burroughs Corporation.