duotypen.
/ˈdjuːəʊtʌɪp/ A half-tone illustration printed from two plates made from the same monochrome negative, but etched differently to give two sets of colour-values; also, the process used to print such an illustration.
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society > leisure > the arts > visual arts > printmaking > photomechanical or process printing > [noun] > photogravure or phototypography > a print
heliograph1853
phototype1854
photo-etching1872
photo-intaglio1875
autogravure1885
duotone1907
duotype1913
1913 S. H. Horgan Halftone & Photomechanical Processes 207 Duotype, two half-tone plates made from the same negative, but etched differently.
1967 R. R. Karch & E. J. Buber Graphic Arts Procedures: Offset Processes v. 176 A duotype is a two color halftone made from one halftone negative.
This entry has not yet been fully updated (first published 1972; most recently modified version published online March 2018).
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n.1913