Watch List notes:

ABBASID: al-Ma'mun, 810-833, AE dirham weight (2.82g), ND, A--, uniface, al-imam al-ma'- / -mun 'abd Allah / amir al-mu'minin within beaded circle, probably unpublished and likely unique, VF, RRRR.

Estimate: 3,000-4,000 GBP