autotypography

from The Century Dictionary.

• noun Any process by means of which drawings, manuscripts, etc., can be transferred directly to a plate or material from which impressions can be taken; especially, a process by which autographs executed in a special ink are transferred to a plate of zinc, which is then etched and prepared for printing on an ordinary press. See zincography.

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

• noun A process resembling “nature printing,” by which drawings executed on gelatin are impressed into a soft metal plate, from which the printing is done as from copperplate.

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

• noun archaic A process by which drawings executed on gelatin are impressed into a soft metal plate, from which further prints can be made.