Racz Tally Roll Adding Machine Carriage

This object is a gray metal model of the carriage and paper holder for an adding machine. There is a black ribbon, but no printing mechanism. There are two loose pieces.
The model is marked on a red paper tag attached to the machine: PATENT DEPT. (/) #172. It is marked on a metal tag screwed to the plate: B.A.M.CO. (/) MODEL (/) NO 1017. A metal tag attached to the object reads: DONATED TO (/) The Smithsonian Institution (/) by (/) Burroughs Corporation. It was model #172 in the collection of the Patent Division of Burroughs Corporation.
Between 1927 and 1942, Burroughs Adding Machine Company inventor Ernst Racz filed several patent applications for improvements in the printing and arrangement of paper tapes and receipts on adding machines. This is one of them.
Currently not on view
Object Name
adding machine model
date made
ca 1927-1942
Burroughs Adding Machine Company
Physical Description
rubber (overall material)
paper (overall material)
metal (overall material)
overall: 28.6 cm x 46.2 cm x 26.7 cm; 11 1/4 in x 18 3/16 in x 10 1/2 in
place made
United States: Michigan, Detroit
ID Number
catalog number
accession number
Science & Mathematics
Adding Machines
See more items in
Medicine and Science: Mathematics
Adding Machines
Data Source
National Museum of American History, Kenneth E. Behring Center
Credit Line
Gift of Burroughs Corporation
Additional Media

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