ISLAMIC, 'Abbasid Caliphate. Al-Mustansir, AH 623-640 / AD 1226-1242. Dirham (Silver, 17 mm, 1.49 g, 7 h), citing the caliph al-Mustansir billah, Madinat al-Salam, AH 636 = AD 1238/9. SICA III, 1274. Nicely toned. The flan somewhat wavy, otherwise, very fine.