ABBASID, AL-MUSTA'IN (248-251h), Dinar, Tiflis 248h. OBVERSE: plain, without name of heir. WEIGHT: 4.21g. REFERENCES: Bernardi type 160; cf Pakhomov II, 23 [a dirham of this date with similar legends]. CONDITION: Minor marks, very fine and of the highest rarity, apparently unpublished and the only known Abbasid gold coin from this mint (25000 - 30000 GBP)