Watch List notes:

ABBASID: al-Ma 'mun, 810-833, AR dirham (2.75g), Ma 'din al-Shash (near Tashkent), AH199, A-223.4, citing the vizier below the reverse field, as Dhu 'l-Ri 'asatayn, EF, R.

Estimate: 120-160 USD