Washington DC: Government Printing Office, 1868. Original edition. Hardcover. 930-1586pp. Octavo [23 cm] Black cloth covered boards. Very good. The edges of the covers are gently bumped. The cloth at the spine ends is slightly chipped. The gilt stamped title on the spine has faded. The bottom edges of the pages are occasionally very subtly moisture stained. Item #23845
Includes patents for Machine for Stretching Leather, Machine for Pegging Boots and Shoes, Envelope Machine, Trunk Hinge, Ventilator for Flour Mills, and so much more.