Traité général de photographie
A French photography treatise by Désiré van Monckhoven, published in Paris by Victor Masson et fils in 1865, aimed at practising photographers and technicians. Its pictures are precise line engravings of apparatus: a curved plate holder, a stereoscopic-style viewing stand with framed slides, a lantern-like slide carrier, and a bellows camera with a folding body. A designer could draw on their crisp hatching, labelled lettering and mechanical clarity for diagram-style or vintage technical graphics.
