Watch List notes:

ISLAMIC, 'Abbasid Caliphate. Uncertain period, temp. al-Saffah to al-Amin. AH 132-199 = AD 749-813. Dinar (Gold, 10 mm, 1.14 g, 11 h). Very heavily clipped into an octagonal shape, leaving not even the Kalima intact, otherwise, very fine.