Paris: Gauthier-Villars, 1879. First edition. Small 8vo., xiv, 284 pp., frontispiece is a phototypie by Quinsac with tissue guard, plus 3 full-page phototypie plates by C. Relvas; other illustrations in text. Half morocco and marbled boards, raised bands on spine with gilt title and rules, t.e.g. Scattered foxing, frontispiece and photo-plates loose and laid in. A very good copy. Item #26947
A well-illustrated manual covering phototypie, a collotype process utilizing greasy-ink on a gelatin plate. We presume this to be Vidal's own copy as it bears his round ink stamp on an endpaper and contains an additional two plates not found in other copies, which list only two.
Roosens and Salu No. 8290.