Watch List notes:

Islamic Coins, Abbasid, al-Mahdi (158-169h), silver dirham, al-Basra 160h, citing al-Khalifa al-Mahdi and in lower reverse field the official Muhammad written vertically, wt. 2.65gms. (A.215.1 footnote 125 – RR; Lowick 1027), good very fine and very rare
(250-300 GBP)