Original issue, US Army Technical Manual, 11 pages, size is 8 1/4" x 10 3/4", stapled, three hole punched, dated 2 October 1969.  This is not a commercial copy or print but an original issue government print published in 1969.  This publication is titled - TM 9-1310-202-12, Operator and Organizational Maintenance Manual for Cartridges, 40-MM: HE, M386, M441 and M397.  Publication is designed to provide detailed information and instructions for the use and operation of this 40MM ammunition.  Very well illustrated using  clear and detailed photographs and line drawings.