KAKWAYHID: 'Ala al-Dawla Muhammad, 1008-1041, AR dirham (4.53g) (Isba)han, AH412, A-1591A, the word mu'tamid above the obverse field, the reverse field only with Qur'an sura 122, about 20% flat, seems to be unpublished subtype, VF.
Estimate: 100-130 USD