Watch List notes:

Abbasid, temp. al-Mahdi, Dirham, 2.89g, al-Yamama, AH165, rev. naming Hajar below legend (A.215.1), about very fine, rare.
Al-Yamama was the first mint to be established in the Arabian peninsula. It was the name for a district situated near al-Riyadh in Saudi Arabia and Hajar was it's then capital. AH165 is the earliest known date for this mint.
(£250 - £300)