^Lot 417 ABBASID: al-Ma'mun, 810-833, AV dinar (4.15g), Misr, AH203

ABBASID: al-Ma'mun, 810-833, AV dinar (4.15g), Misr, AH203, A-222.7, citing al-Sari, governor of Egypt, and the military office Tahir, but not the caliph, Very Fine, S, ex. Robert Pelletreau collection. Tahir b. al-Husayn had served al-Ma'mun for a decade before rebelling against him in Iran & Central Asia, where he founded the short-lived independent Tahirid dynasty, with its capital at Marw (now in Turkmenistan).