United States. Army. Corps of Engineers.
Design for an improved submarine tunnel : comprising a brick arch within a cast or wrought iron skin, laid in a trench dredged for that purpose. / by Lieut. Col. J.G. Foster, Corps of Engrs..«.. “— [Washington, D.C.? ¢ guttcds 2868.
8 p., [5] leaves of plates (1 folded) ; 30 cm.
Lettered on cover: ''Engineer Department, U.S.A. Submarine Tunnel. Foster. 1868.""
Publisher's binding : blind &
gilted-stamped (cont. next card) 30-6130
19508