Watch List notes:

Abbasid, al-Musta'in/al-Mutawakkil, mule dinar, Marw 251h, obv., as Bernardi 161ph, citing al-'Abbas bin | amir al-mu'minin, rev., as Bernardi 158Ph, citing the caliph al-Mutawakkil, 4.13g, about very fine, very rare and unusual (£400-600)