JACOB Nicolas-Henri (Paris 1782 † 1871). Announcement of the invention of Papyrography, developed by Senefelder]. Papyrography. 1819. Proof on vellum, signed in the plate. One of the 20 plates of the collection used as a supplement to Aloys Senefelder's book, The Art of Lithography (1819). Ref : I.F.F. not described. All margins. 29 x 20.5 cm (sheet). Condition B (freckles and small handling folds). Caption: "Papyrography is the name we have given to the discovery of a stony mass artificially fixed on the paper and which tends to replace with advantage lithographic stones both for pencil, brush, pencil drawings, etching, etching, etching with a point and for all kinds of transport. It also advantageously replaces tin plates for music engraving and even copper plates for second and third class engravings. »