Care and Identification of 19th-century Photographic Prints
Explains how to identify and care for 19th-century photographic prints. Gives information on the history of photographic processes and identifying types of prints. Also includes a section on storage, display, and how to control deterioration. Includes a 9-3/4 x 24" Care and identifi-cation Flowchart (G-2SA), which characterizes 13 different photographic and photomechanical processes.
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19th-century photographic prints 19th-century prints 30X magnification albu albumen paper albumen prints albums ambrotype baryta coating baryta layer binder layer bumen calotype carbon prints cause century cess chemical collection collodion papers collodion printing-out paper collodion prints collotype conservation Cyanotypes damage developing-out papers display dyes emulsion enclosures ferrotyping filamentary silver final image material forms of deterioration gelatin and collodion gelatin printing-out papers gold toning gum bichromate handling highlight detail identify image color image deterioration image fading image hue light lignin matte collodion printing-out matte surface ment metal microscopic moisture mount negative neutral black non-image areas oxidation paper fibers paper support particles photogenic drawing photogravure photolytic silver images Photomacrograph pigments platinotype platinum print materials print process print surface problems relative humidity salted paper prints sensitized shadow areas silver chloride silver ions silver prints silver sulfide staining structure sulfur temperature thiosulfate tion tive tographic woodburytypes yellow