The camera as historian
The Camera as Historian is a 1916 photography manual by H. D. Gower, L. Stanley Jast and W. W. C. Topley, published in New York by Arno Press and aimed at people who use photographs as historical evidence. The pictures are rotated scanned plates of early cinematograph and lantern equipment, including a film viewer, a lantern viewer and a dry-mounting outfit, drawn or photographed in plain, unshaded detail. A designer could take their clean technical line drawings and utilitarian, workshop-like arrangements of machines and benches as reference for vintage mechanical diagrams.
