Watch List notes:

ISLAMIC, 'Abbasid Caliphate. temp. Al-Ma'mun, AH 199-218 / AD 813-833. Dirham (Silver, 26 mm, 2.91 g, 9 h), Madinat al-Salam, AH 205 = AD 820/1. SICA IV, 1773. Lustrous and attractive. Minor traces of overstriking, otherwise, virtually as struck.