Watch List notes:

ISLAMIC, 'Abbasid Caliphate. temp. al-Ma'mun. AH 199-218 / AD 813-833. AR Dirham (27mm, 4.17 g, 2h). Citing Dhu al-Ri'asatayn. Fars mint. Dated AH 201 (AD 816/7). Album 223A; ICV 390. VF, toned, slightly crimped flan. Rare.