Original issue, US Army Technical Manual, 44 pages, size is 8 1/4" x 10 3/4", stapled, three hole punched, dated 3 April 1981.  This is not a commercial copy or print but an original issue government print issued in 1981 and republished in 1994.  This publication is titled - TM 9-2815-210-34-1, Troubleshooting DS and GS Levels for Engine Assembly, Diesel (Multifuel): Naturally Aspirated or Turbocharged, Fuel-Injected, Water-Cooled, 6 Cylinder, Models LD-465-1, LD-465-1C, LDT-465-1C, LDS-465-1, LDS-465-1A, LDS-465-2 and Clutches.  Publication provides information and instruction for troubleshooing these engines.  Very well illustrated using clear and detailed line drawings..