'Abbasid caliphs
al-Ma'mûn 'Abd-allâh, 195-218 H./810-833 AD. Dirham 206 H., Madînat Herât, with the title of Tâhir "Dhû l-yaminain" and the governor ash-Shâkir ibn Ibrâhîm. Lowick/Savage 2242-2243 var.; SICA 3 no. 2072. 2.85 g.; Extremely fine
Acqu. Peus auction 371, April 2002, no. 746.