Modern printing processes : gum bichromate and platinotype papers (1900)
Abbott, Henry G., 1858-1905 · Chicago : Geo. K. Hazlitt · leaf 62
From a By Platinoty^e W. 3. Dyer. An Example of Regular Toning in^Platinotype. By comparing this with the figure on the other side you will see how the print was manipulated to cut out background and dress.
Photography
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
