Watch List notes:

ABBASID: al-Amin, 809-813, AR dirham (2.91g), Madinat Herat, AH195, A-221.5, citing the heir as al-imam al-ma'mun wali 'ahd al-muslimin 'abd Allah b. amir al-mu'minin, bold strike, choice EF, R.

Estimate: 110-150 USD