Anaglyptograph

An`a`glyp´to`graph


n.1.An instrument by which a correct engraving of any embossed object, such as a medal or cameo, can be executed.
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Each book comes complete with a separate portfolio of maps containing all 8 of Siborne's famous anaglyptographs; this fascinating technology of 1816 renders the terrain of the battlefields in 3D.