Watch List notes:

ISLAMIC, 'Abbasid Caliphate. temp. Al-Mahdi, AH 158-169 / AD 775-785. Fals (Bronze, 24 mm, 3.54 g, 11 h), citing the governor Ishaq, al-Kufa, AH 163 = AD 779/80. Album 306. Some deposits and scratches, otherwise, about very fine.