Watch List notes:

ISLAMIC, 'Abbasid Caliphate. temp. Al-Saffah, AH 132-136 / AD 749-754. Dirham (Silver, 25 mm, 2.92 g, 11 h), al-Basra, AH 133 = AD 750/1. SICA III, 504. Light marks, otherwise, about extremely fine.