copygraph

from The Century Dictionary.

• noun Same as hectograph.
• noun A print produced by copygraph.
• noun A printing-type of peculiar face, made to imitate the characters of a type-writing machine.

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

• noun A contrivance for producing manifold copies of a writing or drawing; -- made obsolete by later developments in copying technology; see xerography.

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

• noun dated An early means of producing multiple copies of a document by means of pressing it against a slab of gelatin softened with glycerin and making further copies from the resulting reversed image.