Scientific American, Vol. 24, No. 1 (1871)
A weekly American periodical of 1871 devoted to mechanics, invention and industry, aimed at engineers, inventors and tradesmen, with engraved technical drawings of machines and apparatus. The pictures are black-and-white line engravings of cross-sections, elevations and mechanisms with lettered reference parts, useful to a designer for their precise, diagrammatic linework and clear structural hierarchy.
