Scientific American, Vol. 33, No. 10 (1875)
This is a weekly American science and engineering periodical from 1875, Scientific American volume 33 number 10, printed in New York for a general readership of mechanics, inventors and manufacturers. Its pictures are black-and-white engraved line drawings of machinery and tools, including belt tighteners, drilling gear, a power press with a geared flywheel, and a sectional globe valve, drawn with clean outlines, cross-hatching and numbered reference letters. A designer could take from them the crisp hatched shading and technical diagram conventions of late nineteenth-century engineering print.
