Traité de la gravure sur rouleaux
A French technical treatise by Eugène Berthoud, published in Mulhouse, Alsace, in 1906 by the Société industrielle de Mulhouse, on engraving rollers for textile printing. Its pictures are line drawings of machine parts, labelled with letters and shown in plan, elevation and section, with hatched cut surfaces and clean outlines a designer could borrow for mechanical or industrial diagram work.
