Paris: Gauthier-Villars, 1887. Second French edition. Small 8vo., xiv, 98 pp., mounted platinum photographic frontispiece, illustrations. Original printed wrappers. Slight edge wear, creasing and moderate staining to wrappers. Very good. Housed in a custom made cloth clamshell box with facsimile paper label on front. Item #26828
This manual discusses Pizzighelli's newly modified platinum process. Pizzighelli was the brother-in-law of H.W. Vogel with whom he invented gelatin silver chloride emulsion for printing papers. M. Le Baron Hübl invented the multiple gum printing process. The frontispiece is an original platinum print.
Roosens and Salu No. 8637. OCLC locates tens copies.