Original issue, US Army Technical Publication, 48 pages, size is 5 3/4" x 4 1/2", stapled, dated 30 July 1973.  This is not a commercial copy or print but an original manual published in 1973 and republished in 1988 to include changes 1 through 4.  Title of publication is -  TM TM 9-1340-203-20, Rocket Lasuncher M190 with Subcaliber 35 MM Practice Rocket M73.  Publication describes modification of Rocket Launcher M72A1 to form Rocket Launcher M190.  Launcher M190 loaded with subcaliber Practice Rocket M73 forms Practice Device for 66MM Light Antitank Weapon Systems M72 series.  Maintenance and firing line loading and unloading procedures are provided.  Very well illustrated using detailed and clear line drawings.