zincograph

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A prepared zinc plate used in zincography.
• noun A print or picture obtained from a zincograph.

from The Century Dictionary.

• noun A plate or a picture produced by zincography. Also zincotype.
• To transfer a design to the surface of a zinc plate with intent to etch it and make therefrom a plate in relief.

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

• noun A zinc plate prepared for printing by zincography; also, a print from such a plate.

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

• noun An engraved zinc plate used in zincography.
• noun An engraving made with such a plate.