charlesguerin: dry collodion process (Russel process) 022
charlesguerin: dry collodion process (Russel process) 021
charlesguerin: PRINT gum dichromate 014
charlesguerin: dry collodion process (Russel process) 020
charlesguerin: dry collodion process (Russel process) 019
charlesguerin: PRINT lith 017
charlesguerin: PRINT lith 016
charlesguerin: PRINT lith 015
charlesguerin: PRINT oilprint 011
charlesguerin: PRINT kallitype 006
charlesguerin: P experiment 02
charlesguerin: P experiment 01
charlesguerin: PRINT gum dichromate 012
charlesguerin: PRINT gum dichromate 011