Watch List notes:

Abbasid, al-Radi (322-329h), dirham, Isbahan 326h, 3.30g (Treadwell Is326, same obverse die), edge faults, fine to good fine and rare. Treadwell, who only had access to a damaged and fragmentary piece, was unable to read the reverse field and so could not identify this as an Abbasid rather than a Buwayhid type.