ISLAMIC, Seljuks. Rum. 'Izz al-Din Kay Ka'us I bin Kay Khusraw. AH 608-616 / AD 1211-1219. AR Dirhem (23mm, 2.97 g, 6h). Qunya (Konya) mint. Dated AH 607 (AD 1210/1). Broome 113; Izmirlier 162 (same dies as illustration); Album 1208; ICV 1330. Toned, minor deposits. VF.
Broome notes that Kay Ka'us appears to have been recognized at Qunya as early as AH 606 (AD 1210/1).