Scientific American, Vol. 25, No. 17 (1871)
Scientific American, volume 25, number 17 from 1871 is a weekly American periodical of mechanical and scientific news, printed in New York for engineers, inventors and manufacturers. Its pages show woodcut engravings of machines with figure numbers and short captions, including a woodworking machine, a compact steam engine and boiler, and a valve mechanism with lettered parts. A designer could draw on their precise line work, dense hatching and exploded-view clarity for technical diagrams.
