The Poco Exposure Meter

Description (Brief)
Photographic exposure scale with celluloid front and paper back. It has an interior celluloid dial, and red and blue print on front. A Light Value Table is printed on the back. One side of the dial describes various kinds of scenes ("Distance in open landscape, snow scenes with dark objects", "Sea, Dark Clouds", etc.) and the other lists kinds of film and plates. An advertisement for the Rochester Optical & Camera Company; it features the Poco Camera, one of its products.
Currently not on view
Object Name
exposure scale
date made
Rochester Optical & Camera Company
Physical Description
cellulose nitrate (overall material)
overall: 12.5 cm x 7.5 cm; 4 15/16 in x 2 15/16 in
place made
United States: New York, Rochester
ID Number
accession number
catalog number
See more items in
Medicine and Science: Chemistry
Data Source
National Museum of American History, Kenneth E. Behring Center
Additional Media

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