ABBASID: al Wathiq, 842-847, AV dinar (4.17g), Misr, AH227, A-227, Bernardi-152De, al-'Ush-1189, although the date could be read as either 227 or 229, it must be 227 because there is a dot engraved below the "b", for sab' ("7"), EF, ex Gamal Amer Collection, ex Islamic Coin Auction 6, Lot 99.
Estimate: 260-325 USD