KAKWAYHID: 'Ala al-Dawla Muhammad, 1008-1041, AR dirham (5.89g), Isbahan, AH (4)24, A-1591M, citing the Ghaznavid overlord Mas'ud, with the deceased caliph al-Qadir on the reverse, the current caliph al-Qa'im on the obverse! Fine to VF, RR.
Estimate: 130-170 USD