Scientific American, Vol. 21, No. 1 (1869)
Scientific American volume 21, number 1 from 1869 is a weekly American periodical of mechanical and scientific news, aimed at inventors, engineers and general readers. Its pages here carry wood-engraved figures of harness and horse-gear patents, a belt-driven winding machine, and a rider with a driving line. The horse pictures show clean line hatching and labelled parts, useful to a designer wanting precise, diagrammatic equine detail.
