A cast of the face of a living person. Usually such casts have been made from a mold produced by placing gesso or plaster on the face, with a passage provided for breathing through the mold. Such a mold is likely to be of one piece, since the face is generally sufficiently flexible to enable removal of the hardened mold, as long as a release agent has been applied. A death mask is very similar.
A printing technique that involves carving text in relief upon a wooden block. When inked, the impression is transferred to paper. The oldest known printed works were produced by this method in Japan and China during the 8th and 9th centuries. This method of wood-block printing appeared in Europe in the 14th century and eventually inspired Johannes Gutenberg to create type pieces out of metal.