Scientific American, Vol. 51, No. 15 (October 1884)
An issue of the weekly American technology and patent journal Scientific American, published by Munn & Co. in New York in October 1884 for inventors, mechanics and general readers. The 22 wood engravings show patented devices — car couplers, gas checks, planing machinery — in lettered perspective views and hatched cross-sections, with fine ruled shading and small figure labels useful as line-art diagrams or mechanical spot illustrations.
