Watch List notes:

ISLAMIC, 'Abbasid Caliphate. Al-Mu'tasim, AH 218-227 / AD 833-842. Dirham (Silver, 25 mm, 3.00 g, 12 h), citing the caliph al-Mu'tasim billah, Madinat al-Salam, AH 225 = AD 839/40. SICA IV, 863. Struck from worn dies, otherwise, very fine.