Rochester: Defender Photo Supply Company, ca. 1940. 16mo., 76 pp. Decorative stiff wrappers. Laid-in is a 4 pp. supplemental price list and a 15 pp. priced supplement for Defender Dry Plates, Seed - Stanley - Standard. Fine. Item #29979
The Defender Photo Supply Company was an early leader in manufacturing of black and white sheet film, plates, printing paper and instructional books. The company was based in Rochester, New York and operated from the turn of the twentieth century into the 1940s when it was purchased by Dupont.
A full manual for exposure and development for the various papers and plates, with chemical formulas, and prices.