Islamic - Mongol Dynasties. ILKHAN: Arghun, 1284-1291, AR ½ dirham (1.33g), Isfarayin, ND, A-2153, Arghun cited only in Uighur in the center of the obverse, with an undeciphered word at the bottom, kalima and the mint on the reverse; appears to be an unpublished type, EF, RRR.