FATIMID: al-Mahdi, 909-934, AV dinar (3.99g), al-Mahdiya, AH318, A-688, Nicol-62, with the name 'abd Allah above the obverse, and al-imam / al-mahdi billah on the reverse; full mint & date, VF-XF, RRR. Al-Mahdiya was founded by al-Mahdi in AH308 and named after himself, located on the Mediterranean coast about 50 miles east of al-Qayrawan (a dinar dated 305 is reported but not confirmed, Nicol-52).

Estimate: USD 1900 - 2200