Paris: Gauthier-Villars, 1904. First edition. Small 8vo., viii, 96 pp., illustrated with figures and charts. Printed paper wrappers which are lightly toned and have a soft crease. Stamped in blind "Hommage" on the half-title. Very good. Item #26677
An early manual on pinhole photography; discusses how-to-do-it, theory of image formation using different hole and image size, lighting conditions, etc.
Roosens and Salu No. 8601. OCLC locates nine copies.