Watch List notes:

ISLAMIC. Abbasid Caliphate. al-Ma'mun. AH 194-218 (AD 810-833). AR dirham (2.84 gm; 25 mm). Madinat Bukhara mint. Dated AH 195, citing al-Fadl b. Sahl on reverse. Lowick 2554; Album 223.2. Choice EF. Lightly toned. Rare.