Plateholders

5+) 5x7 plate holders with 4-3x4 & 4-4x5 inserts Antique 1890

Brand- Rochester Optical (predate of the Kodak brand)
Antique 5-5x7 Plateholders in excellent shape +2 extra

2-holders each have 2-3 1/4"x4 1/4" plate inserts and 2-holders each have 2-4"x5" plate inserts; all of the inserts can be removed for normal 5"x7" plate usage.

Made by:(embossed on the sides)
Rochester Optical Co.
Pat. July 29, 1890

The plateholders have spring-loaded catch bars for easy insertion of the plates and inserts, pressing on the catch bars avoids cutting your fingers on sharp edges of the (glass emulsion-coated plates), allowing them to drop in.

1-extra holder has a half-missing darkslide holding bar and missing darkslide handle but is still usable, the seventh  plateholder has missing darkslides.