Abbasid, al-Ma'mun (194-218h), dirham, Madinat Zaranj 205h, citing Ghassan and 'Ayan b. Harthama, 2.92g (Lowick 2490), obverse stained and with pinmarks from inexpert cleaning, otherwise very fine and rare. Ex St James's Auctions sale 19, 3 October 2011, lot 1636. (£150-200)