Paris: Gauthier-Villars, 1907. First edition. 4to., 39 pp. Printed paper wrappers. One corner bumped, else very good. Housed in a custom made cloth clamshell box with decorative paper along fore edge and label on spine. Item #26243
"Extrait du Bulletin de la Société française de Photographie, 2e série, t. XXIII, no. 15, 1907." An early and complete manual of the autochrome process. OCLC locates four copies.