Traite encyclopedique de photographie
An encyclopedic photography treatise by Charles Fabre, published in Paris by Gauthier-Villars in 1889, aimed at photographers and technical practitioners. Its pictures are monochrome line engravings of cameras on tripods, a stereo camera, a ray diagram of image formation, and a pair of rotating-letter drawings, all rendered in crisp black linework that a designer could use for vintage technical diagram treatments.
