ISLAMIC, Seljuks. Rum. Kay Ka'us II, Qilich Arslan IV, & Kay Qubadh II, AH 647-657 / AD 1249-1259. Dirham (Silver, 22 mm, 2.96 g, 9 h), Siwas (Sivas), 647 AH = 1249/50 AD. Legend bearing the Kalima, the name and title of the Abbasid caliph Al-Musta 'sim bi' Allah, AH date and the mint designation. Rev. Legend naming the three ruling Sultans, Kay Ka'us II, Qilich Arslan IV and Kay Qubadh II. Broome 346 Av(iii)a. The obverse slightly double struck, otherwise, about extremely fine.