Scientific American, Vol. 66, No. 16 (April 1892)
A weekly issue of Scientific American, published by Munn & Co. in New York in April 1892 for engineers, inventors, and general readers following patents and industry news. The plates are wood-engraved and halftone machine portraits — dynamos, metal lathes, bracket-mounted gas fixtures, flywheel engines — drawn in three-quarter view with hatched shading, plus advertising cuts set into columns of type, useful as clean mechanical silhouettes and period technical detail.
