Scientific American, Vol. 5, No. 2 (1861)
Scientific American volume 5, number 2 from 1861 is a weekly American periodical of mechanical and scientific news, written for inventors, engineers and general readers in the United States. Its pictures are line engravings of patented devices, with lettered reference figures, cutaway sections and labelled parts that a designer could use as clear mechanical diagrams showing how parts fit together.
