ISLAMIC, Seljuks. Rum. Rukn al-Din Mas'ud I, AH 510-551 / AD 1116-1156. Fals (Bronze, 25 mm, 3.63 g, 10 h). Imperial bust facing, wearing crown with pendilia and loros, holding in globe in his right hand and labarum in his left. Rev. Five line legend in Kufic; above, two stars. Broome 1 Bv(ii). Izmirlier 1. Rare. Attractive earthen highlights. Very fine.