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Gammeter

Item is a transparent sheet printed with an Eastman Kodak Gammeter, a set of indexed graph lines. Gammeters were designed to aid in the dye transfer process by allowing the easy calculation of gammas (colour contrasts) from plotted curves.

Premo camera and accessories / Rochester Optical Division, Eastman Kodak Company

Item is an illustrated catalogue of Premo cameras, lenses, lamps, and other accessories. The Premo trademark operated under the Rochester Optical and Camera Company, which was purchased by Eastman Kodak Co. in 1907. At this time, the company became the Rochester and Optical Division of Eastman Kodak, changing to the Rochester Optical Department in 1918 before disappearing in 1922.