[MILITARY] REPORT UPON EXPERIMENTS AND INVESTIGATIONS TO DEVELOP A SYSTEM OF SUBMARINE MINES FOR DEFENDING THE HARBORS OF THE UNITED STATES. [PROFESSIONAL PAPERS OF THE CORPS OF ENGINEERS, U. S. ARMY; NO. 23]

Washington: Government Printing Office, 1881. Hard Cover. Near Fine binding. Quarto; in sturdy brown cloth with titling in gilt; 444 pages followed by 15 ruled leaves which are blank; with many charts and 27 numbered plates; penned call number on the margin of the table of contents; rubber stamp on page 50 says "Library Engineering School" (what or where we do not know). There are no external marks. Near Fine binding.