physionotrace
noun
phys·i·on·o·trace
ˌfizēˈänə‧ˌtrās
plural -s
: a device used in the late 18th and early 19th centuries to trace the profile of a sitter with chalk or white crayon on a red paper, the image being then completed in black or white crayon
Word History
Etymology
French, from physiono- (from physionomie facial features, from Middle French phisonomie, physionomie facial features, physiognomy) + -trace (from tracer to trace, draw)