Scientific American, Vol. 47, No. 2 (1882)
Scientific American volume 47, issue 2 from 1882 is a weekly American periodical of science, invention and industry, written for engineers, mechanics and general readers. Its pages mix trade advertisements for steam engines, lumber and watchmakers with numbered engraved diagrams of machines and mechanisms. A designer might take the dense, ruled line engravings, the cross-hatched shading and the labelled technical plans with letter keys as models for mechanical linework.
