Buwayhid, 'Ali b. Buwayh (322-338h), Dirham, Jannaba 32xh, with the name of the caliph al-Radi, 3.43g (A 1538). Flat in parts, otherwise very fine, very rare.
Treadwell only recorded one dirham of Jannaba (dated 326h) with the name of al-Radi.
Estimate: £50-70