Watch List notes:

ISLAMIC, 'Abbasid Caliphate. temp. Al-Amin, AH 193-199 / AD 809-813. Dirham (Silver, 23 mm, 2.84 g, 8 h), citing al-Ma'mun as heir, Balkh, AH 193 = AD 805/6. SICA III, 702. Lightly toned. Minor deposits, otherwise, very fine.