URI
Notation
777
Caption
Intaglio and relief processes. Photogravure. Letterpress or relief plates (line and halftone blocks)
Including
Photographic processes for production of intaglio plates, relief plates (line and half-tone blocks). Duplication, reproduction of plates
See also
681.6Graphic reproduction machines and equipment
761Relief techniques
762Intaglio techniques
Broader class
77  Photography and similar processes