Original issue, US Army Technical Manual, 137 pages, size is 8 1/2" x 11", stapled, three hole punched, dated 4 March 1987.  This is not a commercial copy or print but an original issue government print issued in 1987 and republished in 1988.  This publication is titled - TM 9-1015-234-20P, Organizational Maintenance Repair Parts for Howitzer, Light, Towed: 105 MM, M102.  This is a repair parts only manual and as such does not include any repair or maintenance requirements or procedures for this Howitzer.   Very well illustrated using clear and detailed line drawings.