A photographic print or process involving the use of collodion, particularly in early color photography experiments.
Collodion + '-type' (a suffix for photographic processes). A technical term from experimental color photography in the 19th century.
Collodiotype was one of dozens of named early photography processes—photographers gave them fancy names like 'autochrome,' 'gum bichromate,' 'carbon print'—but most are completely forgotten today.
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