Watch List notes:

ISLAMIC, 'Abbasid Caliphate. Al-Mu'tasim, AH 218-227 / AD 833-842. Dirham (Silver, 26 mm, 3.00 g, 12 h), citing the caliph al-Mu'tasim billah, Madinat al-Salam, AH 226 = AD 834. SICA III, 868. An attractive example. The flan slightly wavy, otherwise, extremely fine.