Scientific American, Vol. 41, No. 6 (1879)
A weekly American science and engineering periodical from 1879, volume 41, issue 6, aimed at general readers, inventors and mechanics. Its pages carry numbered engraved figures of machines and apparatus with lettered reference parts, many captioned with 'Fig.' labels. The engravings are precise line drawings of metal machines, shown in three-quarter views and sections, which a designer could use for mechanical, industrial or retro technical graphics.
