1) Artistic technique
Found on
https://www.crosswordclues.com/clue/scratchboard
Scraperboard or scratchboard refers to both a medium, and an illustrative technique using sharp knives and tools for etching into a thin layer of white China clay that is coated with black India ink. Scratchboard can also be made with several layers of multi-colored clay, so the pressure exerted on the instrument used determines the color that is ...
Found on
http://en.wikipedia.org/wiki/Scratchboard
a technique used by commercial artists and illustrators to make drawings that can easily be reproduced and that closely resemble either wood ...
Found on
http://www.britannica.com/eb/a-z/s/50
No exact match found.
