Scientific American, Vol. 61, No. 7 (1889)
Scientific American, volume 61, number 7, published in 1889, is a weekly American magazine of science, invention and patents, aimed at general readers and engineers. Its pages show technical line engravings: a set of dental restorations, a railway car coupling, a furnace process diagram, and a column of patent listings and advertisements. A designer can take from them the crisp, diagrammatic style of late nineteenth-century mechanical drawing, with numbered parts, hatching and cutaway views.
