'Abbasid caliphs
al-Ma'mûn 'Abd-allâh, 195-218 H./810-833 AD. Dirham 197 H., Madînat Naysâbûr, with the title of the vizier "Dhû r-riyâsatain" below rev. field and the name of the local deputy 'Abd-allâh interrupting the annulet pattern of the obv. margin. Lowick/Savage 2332; SICA 3 no. 2027; Qatar 1809. 2.95 g.; Very fine
Acqu. Peus auction 372, October 2002, no. 1542.