ISLAMIC, Seljuks. Rum. Ghiyath al-Din Kay Khusraw II, first reign, AH 634-644 / AD 1237-1246. Dirham (Silver, 22mm, 3.1 g), Siwas, AH 638 = AD 1240/1. Lion advancing right; personification of sun above; in field to left, star; below, star and crescent with pellet; around, legend bearing the name of the Abbasid caliph Al-Mustansir bi' Allah. Rev. Legend bearing the name and title of Kay Khusraw II; in outer margin, mint and AH date.