Watch List notes:

ISLAMIC, 'Abbasid Caliphate. Al-Mahdi, AH 158-169 / AD 775-785. Dinar (Gold, 18.5 mm, 4.05 g, 1 h), no mint, AH 167 = AD 783/4. Album 214; Bern 51. Toned. Some marks and scuffs, and struck on a uneven flan, otherwise, very fine.

From a Swiss collection.