Gum Bichromate Lighter Series

Two layers of gum bichromate
7 3/4"x11"

 Gum bichromate, two layers
 22"x15"

Two layers of gum
 20 3/4"x14 3/4"

 Two layers of gum 
 20 3/4"x14 3/4"

 

A layer of gum over cyanotype
 20 1/4"x16"

Two layers of gum bichromate on unsized paper
19 3/4"x13"

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