ILLUSTRATED CATALOGUE OF BLAKE'S IMPROVED STEAM PUMPS AND PUMPING ENGINES.
[New York? 1890]. Original printed wrappers. Front wrapper has title printed in blue, with vignette of a steam engine in background, and the words, "For Sale By Miller, Chapman & Castle, Butte, Montana." Rear wrapper with an engraving of Blake's Vertical (Marine) Duplex Pump. , 78pp, with numerous additional pages..... More