SELJUQ OF RUM: Kayka'us II Ibn Kaykhusraw (1245-1249), silver dirham (2.63g), Qunya (Konya) mint, AH 647. Sultan cited as "dhillullah fil-'alam" ("Allah's shadow in the world"). Citing last Abbasid caliph of Baghdad Al-Musta'sim Billah. A-1223.1. Extremely fine.
Estimate: 40-60