ISLAMIC, 'Abbasid Caliphate. temp. Al-Rashid, AH 170-193 / AD 786-809. Dirham (Silver, 26 mm, 3.06 g, 8 h), citing the future caliph al-Ma'mun, as as 'Wali Wali 'ahd al-Muslimin' ('successor of the successor of the covenant of the Muslims' in Kufic) and as ibn Amir al-Mu'minin ('son of the Commander of the Faithful'), Ali ibn Isa ibn Mahan and al-Nadr, Ma'dan al-Shash, AH 189 = AD 804/5. SICA III, 1976. Extremely fine.

From the Dr. David Majer Collection of Islamic coins, formed over the past two decades.

Ali ibn Isa ibn Mahan was a prominent military leader and governor of Khorasan under the caliph, Harun al-Rashid.