ABBASID OF YEMEN: al-Mutawakkil, 847-861, AV dinar (2.18g), NM, AH236, A-1053A, citing Ja'far below the obverse, with the word read as al-riyusan at the end of the date formula in the obverse inner margin, clipped down, as always for the Yemeni dinars of al-Mutawakkil struck AH232-238, VF-EF, RRR. This is the second known example; the first sold at Morton & Eden Auction 92, Lot 31 (2017). The meaning of "al-riyusan" is unknown.
Estimate: USD 600 - 700