Inside Out Library · ExploreModern printing processes : gum bichromate and platinotype papers (1900)Abbott, Henry G., 1858-1905 · Chicago : Geo. K. Hazlitt · leaf 1Gum-Bichromate Printin and PlatinotypePhotographyInternet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.More pictures from Modern printing processes : gum bichromate and platinotype papersMore like this
