Class 12 Retrospective Museum. Photography. (Materials, processes and products). At the Universal International Exhibition of 1900 in Paris. Report of the Installation Committee . Bélin Frères, Saint-Cloud, s .d. In-4 (32 x 25 cm). Original edition, paperback. 104 pp. Numerous figures in the text. Off-text plates (portraits of Niepce, Daguerre, Fox-Talbot, Bayard; photograph of Demachy,...). Soft cover in good condition with a small corner missing and some minor defects; inside in very good condition with the pages partially uncut and the snakes preserved.