Original issue, US Army Technical Manual, 197 pages, size is 8 1/4" x 10 3/4", stapled, three hole punched, dated 24 June 1980. This is not a commercial copy or print but an original issue government print issued in 1980. This publication is titled - TM 5-6640-213-14, Operator, Organizational, DS and GS Maintenane for Laboratory, Air Mobile, Aviation Fuel. Publication is designed to provide information and instructions for the operation and for the maintenance requirements and procedures for this Aviation Fuel Laboratory. Very well illustrated using clear and detailed line drawings and photographs.