Watch List notes:

ABBASID: al-Ma'mun, 810-833, AV dinar (4.16g), NM, AH203, A-222.14, with hard H below reverse field, perhaps standing for the governor al-Hasan of Wasit & al-Kufa, as found on dirhams of al-Kufa dated 202 & 203, choice EF, RR.

Estimate: 350- 450 USD