Islamic - Mongol Dynasties. CHAGHATAYID KHANS: Buyan Quli Khan, 1348-1359, AR Quhistani dinar (5.00g), Junabadh, blundered date, A-2010, very rare mint in Quhistan province (Gonabad in modern Iran); denomination related to the half tanka of the contemporary Dehli Sultanate, decent strike, VF, RR.