I have a Iraq 12.7x108mm Dummy. It has a magnetic ball bullet with a heavy smooth cannelure on the neck to retain the bullet. The primer is recessed 1.6mm below te face of the head. The headstamp, as shown below, is (19)82 Army Property Symbol 12.7 and three Arabic (Farsi??) letters at 12:00. According to Elk’s in “Ammunition with Arabic Markings”, the meaning of these letters was unknown in 1979. Has the meaning been discovered since that publication?