P625J Pratt & Whitney & Niles Bement Pond Arsenal Equipment. 44-page extract from full-range catalogs for Gun Barrel Boring, Reaming & Chabering Machines
Pratt and Whitney & Niles Bement Pond Arsenal Equipment. A 44-page extract from several Full-range Catalogus spanning 1900 to 1930 that shows gun barrel and tube drilling machines, gun barrel drill grinder, gun barrel and tube reaming machines, gun barrel rifling machines, gun barrel chambering machine and a pistol rifling machine. 44 pages.