Des machines d'agriculture
A French agricultural engineering plate from Borgnis's 1819 treatise on farm machinery, published in Paris by Bachelier and held by the ETH-Bibliothek. The engraved sheets show technical drawings of threshing, grinding and conveying machines, with plan, elevation and section views labelled with figure numbers. A designer could take the crisp hatched line work and the clean, numbered diagram layout as a model for technical illustration; the lower strip shows stippled ground and masonry in a finer engraved texture.
