The Collaborative International Dictionary
Galvanograph
Galvanograph \Gal*van"o*graph\, n. [Galvanic + -graph.] (Engraving) A copperplate produced by the method of galvanography; also, a picture printed from such a plate.
Wiktionary
galvanograph
n. 1 A copperplate produced by galvanography. 2 A picture printed from a plate of this kind.