Smallwood Calculator

Description:

This small stylus-operated non-printing adding machine has seven brass wheels and a steel frame painted black. Seven windows above the wheels reveal the result. The back is covered with green felt. The machine is marked on the front: -THE- (/) SMALLWOOD (/) CALCULATOR (/) OAKLAND (/) CAL. The front of the case is marked: -THE- (/) SMALLWOOD CALCULATOR (/) OAKLAND, CALIFORNIA (/) Patented Feb. 23rd 1926. The machine fits in a wooden stand, which also has a slot for the stylus. The stand has four rubber feet. The entire instrument fits in a black cardboard cover. The stylus is silver-colored metal, with a blue plastic end piece.

Compare to The Calculator (1986.0542.01).

Reference:

Russell W. Hook, “Adding Machine,” U.S. Patent 1,574,249, February 23, 1926.

Date Made: 1926

Location: Currently not on view

Place Made: United States: California, Oakland

Subject: Mathematics

Subject:

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

Exhibition:

Exhibition Location:

Credit Line: Gift of Naomi Piekarski

Data Source: National Museum of American History

Id Number: MA.336184Accession Number: 1977.0688Catalog Number: 336184

Object Name: adding machine

Physical Description: cardboard (overall material)steel (overall material)brass (overal material)wood (overall material)felt (overall material)Measurements: overall: 7 cm x 33.4 cm x 9.4 cm; 2 3/4 in x 13 5/32 in x 3 11/16 in

Guid: http://n2t.net/ark:/65665/ng49ca746a5-0091-704b-e053-15f76fa0b4fa

Record Id: nmah_690284

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