ISLAMIC, 'Abbasid Caliphate. Al-Musta'sim, AH 640-656 / AD 1242-1258. Dinar (Gold, 28 mm, 7.60 g, 3 h), citing the caliph al-Musta'sim billah, Madinat al-Salam, AH 643 = AD 1245/6. SICA IV, 1348. The flan bent and straightened and with minor nicks, otherwise, extremely fine.