ISLAMIC, Seljuks. Rum. Ghiyath al-Din Kay Khusraw II, first reign, AH 634-644 / AD 1237-1246. Dirham (Silver, 25 mm, 2.99 g, 5 h), struck in the name of the Abbasid caliph Al-Musta 'sim bi' Allah, Sivas, AH 642= 1244/1245. The Basmala, the Kalima and the name of the Abbasid caliph in ornamental Arabic script within dotted square. Rev. “Titles of Kay Khusraw, mint and date” in ornamental Arabic script within dotted square. Bloome 285. An attractive and nicely struck piece. Very fine.