Watch List notes:

Abbasid, al-Radi (322-329h), donative quarter-dinar, 325h, without mint-name, obv., in three lines: amir | al-mu'- | minin, date formula around, rev., in three lines: lillah | al-Radi | billah, 0.99g (Bernardi 291; Ilisch DIII 25), has been mounted in the past with the reverse visible, hence the rim smoothed on reverse while retaining a sharper edge on obverse where removed from the mounting, fine to good fine and extremely rare
(1500-2000 GBP)