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Modern printing processes : gum bichromate and platinotype papers (1900)
Abbott, Henry G., 1858-1905 · Chicago : Geo. K. Hazlitt · leaf 49
Appearance of a platinotype print before development. … Appearance of a platinotype print after development.Photography
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
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