Watch List notes:

Abbasid, al-Ma'mun, AH 199-218 (AD 813-833). AR dirham (2.94 gm; 24 mm). Madinat al-Salam (Baghdad) mint. Dated AH 200 (AD 815/6), citing Dhu'l-Ri'asatayn. Album 223.4; ICV 390. Choice AU. Lightly toned.