lithotypy

from The Century Dictionary.

• noun A peculiar process of stereotyping by pressing the types into a soft mold or matrix.

from the GNU version of the Collaborative International Dictionary of English.

• noun The art or process of making a kind of hard, stereotype plate, by pressing into a mold, taken from a page of type or other matter, a composition of gum shellac and sand of a fine quality, together with a little tar and linseed oil, all in a heated state.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun The art or process of making a kind of hard stereotype plate, by pressing into a mould, taken from a page of type or other matter, a mixture of shellac and fine sand, together with a little tar and linseed oil, all in a heated state.