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Historical Photographic Processes Collection Reeks
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Wet plate negatives

Series contains wet plate collodion negatives, a process usually credited to William Scott Archer , in wide use between 1851 and 1885. The process uses light-sensitive silver halides in collodion on a glass base and the negatives needed to be expo...

Tintypes

Series contains examples of tintypes, collected from various sources.Tintypes, sometimes referred to as ferrotypes or melainotypes, are direct positive images created with sensitized collodion on a metal (iron) surface that has been coated with la...