Octavo. 37pp. + (11)ff. The use of a pantograph enabled printers to copy medals and other objects in low relief onto a printing plate, a lithographic stone, or a block. This book on the subject shows the pantographs and some sample pages illustrated by the process, including an original page from "Tresor de Numismatique," a nineteenth century book on coins, and a foldout replica of its title page. An account of a Parliamentary inquiry into the merits of English and foreign machines is included in facsimile. Very fine in dark blue brocade boards with morocco lettering-piece. Prospectus and bookplate laid in.