ABBASID: al-Ma'mun, 810-833, AV dinar (4.05g), Misr, AH204, A-222.7b, Bernardi-94De, al-'Ush-1164, citing Tahir, the chief general under the caliph al-Ma'mun, and the governor al-Sari, with al-maghrib ("the west") below the obverse, slightly clipped, scarce date, Fine to VF, S, ex Gamal Amer Collection, ex Stack's Auction, 13 April 2005, Lot 249.
Estimate: USD 300 - 400