Scientific American, Vol. 28, No. 24 (June 1873)
An issue of Scientific American, the weekly New York patent and invention paper of 1873, addressed to inventors, machinists, manufacturers and curious general readers. The plates are wood-engraved machine drawings: cutaway sections of hot-air engines and boiler tubes with labelled arrows and hatched metal, flywheels, gear trains, a flanged ring, and small silhouetted shop machines useful as technical spot art.
