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A reproduction technique used in the 19th century. The hectograph process, developed in 1874, used aniline ink or copy pencils to produce the pattern to be duplicated. The ink was then transferred to a gelatin pad to form a master copy, which was used as a stamp to produce several copies of the document.

Synonyms and Related Terms

gelatin duplicator; aniline process; chromograph; copygraph; gelatin method; polygraph; indirect method

Sources Checked for Data in Record

  • Media & Techniques of Works of Art on Paper, New York University, New York, 1999 Comment: B.Rhodes, "Copy Pencil"
  • Website address 1 Comment: palimpsest.standford.edu/bytopic/repro/nadeau1.html