Watch List notes:

ISLAMIC, 'Abbasid Caliphate. temp. al-Ma'mun. AH 199-218 / AD 813-833. Æ Fals (16.5mm, 1.47 g, 6h). al-Quds (Jerusalem) mint. AH date off flan. Cf. Shamma 4 (for type); Sofaer 191; Album 291; ICV 525; CNG 118, lot 1262. Dusty green surfaces. VF.