Watch List notes:

ISLAMIC, 'Abbasid Caliphate. Al-Mahdi, AH 158-169 / AD 775-785. Dinar (Gold, 19 mm, 3.92 g, 2 h), unnamed mint, AH 161 = 777-778 AD. Arabic inscription around Kalima in four lines. Rev. Arabic inscription around Kalima in three lines. Album 214. Bern 1588. Lowick 279. Toned. Some marks and scuffs, and struck on a uneven flan, otherwise, very fine.