Rheinmetall Adding Machine


This ten-key printing electric adding machine has a greenish gray metal case. Nine gray plastic numeral keys are arranged in a block, with the 0 bar below them. Three black keys are on the left, three black keys are right of the number keys, and a bar and key are on the far right. Above the keyboard is a place indicator and above this, a number indicator. The machine has a wide movable carriage at the back that would hold 13”-wide documents. An attachment can hold rolls of paper tape. A serrated edge is above the platen to tear off the paper tape. The motor is below the carriage and the paper tape holder. A black cord, with another cord plugged into it, extends from the back.

The machine is marked above the keyboard and on the carriage: Rheinmetall. It has serial number: 168241. It has a red tag attached to it that reads: PATENT DEPT. (/) #298. This is a tag of the Burroughs Corporation Patent Department, the source of the machine.

The German firm of Rheinmetall Metallwaren und Machinenfabrik introduced a stepped drum calculating machine in 1924. In 1932 the company began making ten-key adding machines in several styles. This is a postwar example.


Ernst Martin, Die Rechenmaschinen und ihre Entwicklungsgeschichte, pp. 370-372, 448-452.

Fédération Nationale des Chambres Syndicales de la Mécanographie, Fédération de Reprise officielle des Machines à Ecrire, Machines à Calculer . . ., Lyon, 1970, p. 81.

Date Made: 1953

Maker: Rheinische Metallwaaren- und Maschinenfabrik Sömmerda Aktiengesellschaft

Location: Currently not on view

Place Made: Germany: Thuringia, Sömmerda

Subject: Mathematics


See more items in: Medicine and Science: Mathematics, Adding Machines, Science & Mathematics


Exhibition Location:

Credit Line: Gift of Burroughs Corporation

Data Source: National Museum of American History

Id Number: 1982.0794.75Maker Number: 168241?Accession Number: 1982.0794Catalog Number: 1982.0794.75

Object Name: adding machine

Physical Description: metal (overall material)rubber (overall material)plastic (overall material)Measurements: overall: 29.5 cm x 46 cm x 49.5 cm; 11 5/8 in x 18 1/8 in x 19 1/2 in

Guid: http://n2t.net/ark:/65665/ng49ca746a5-187f-704b-e053-15f76fa0b4fa

Record Id: nmah_690110

Our collection database is a work in progress. We may update this record based on further research and review. Learn more about our approach to sharing our collection online.

If you would like to know how you can use content on this page, see the Smithsonian's Terms of Use. If you need to request an image for publication or other use, please visit Rights and Reproductions.