Des machines employées dans diverses fabrications
A French technical treatise by J.-A. Borgnis, published by Bachelier in 1819 with plates drawn for engineers and mechanics, describing machines used in various manufactures. The pictures are fine-line engraved plates: a plan of a mill-like building with a central drive mechanism and numbered details, and a close view of a plan labelled Fig. 1 with stacked rectangular blocks and rods. A designer could take the precise, diagrammatic plan layout and the hatched shading as a model for schematic floor plans and technical diagrams.
