Scientific American, Vol. 31, No. 12 (September 1874)
A weekly issue of Scientific American from September 1874, published in New York for inventors, mechanics, and manufacturers reporting new patents and machinery. Wood engravings show steam engines, flywheels, governors, lathes and hand tools in stark black-and-white line and hatching, often at angles, with callout letters and maker imprints usable as cutout mechanical motifs.
