Decimal Equivalents of SRB Products

Description (Brief)
Celluloid mathematical table for decimal equivalents. Square with interior dial, the front bears an image of an wheel with ball bearings. Images of various ball-bearing products are on reverse. It is an advertisment for Standard Roller Bearing Company.
Location
Currently not on view
maker
Standard Roller Bearing Company
place made
United States: Pennsylvania, Philadelphia
Physical Description
cellulose nitrate (overall material)
Measurements
overall: 7.6 cm x 7.6 cm; 3 in x 3 in
ID Number
2006.0098.0513
accession number
2006.0098
catalog number
2006.0098.0513
See more items in
Medicine and Science: Chemistry
Celluloid
Advertising
Data Source
National Museum of American History, Kenneth E. Behring Center

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