SELJUQ OF RUM: Qilij Arslan IV, 1257-1266, AR dirham (3.02g), Develu, AH661, A-1230, obverse die as Izmirlier-688, reverse as Izm-686, fabulous bold strike, perhaps the finest known for this rare mint, AU, RR. The Develu mint operated only for Kayka'us I in 656 and Qilij Arslan IV in 661, and never again. Both are in this auction, this lot for AH661 and lot 614 for AH656.