ABBASID: al-Ma'mun, 810-833, AV dinar (3.81g), NM (Egypt), AH176 (sic), A-222, muling of type A-222.4 obverse, citing the governor of Egypt al-Muttalib (normally dated only 198) and the reverse of type 222.1a, citing the caliph al-Ma'mun below and the phrase li'l-khalifa above the field (dated only 196, but the engraver cut 176); likely a contemporary unofficial issue, probably clipped as full weight should be about 4.25g, F-VF, R.
Estimate: 240-300 USD