Relief halftone

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A reproductive process primarily used for photographs from the 1880s to the 1950s. A relief halftone block is prepared by printing a screened negative face down on a copperplate coated with Fish glue. The unexposed areas remain soluble after development and are washed away, then the plate is acid etched.

Synonyms and Related Terms

color relief halftone; block process

Additional Images

Sources Checked for Data in Record

  • Luis Nadeau, Encyclopedia of Printing, Photographic, and Photomechanical Processes, Atelier, New Brunswick, 1997
  • B. Gascoigne, How to Identify Prints, Thames & Hudson, London, 2004

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