Watch List notes:

ABBASID: al-Ma'mun, 810-833, AV dinar (4.18g), NM, AH200, A-222.13, Bernardi-102, citing al-Hasan and Dhu'l-Ri'asatayn, with the letter 'ayn below al-hasan, believed to have been struck at Wasit, VF, R.

Estimate: 240- 300 USD