Watch List notes:

SELJUQ OF RUM: The three brothers, 1249-1259, AV dinar (4.41g), Sivas, AH647, A-A1227, citing all three brothers, 'Izz al-Din Kayka 'us II, Rukn al-Din Qilij Arslan IV, and 'Ala al-Din Kayqubad II, apparently unpublished, an attractive lustrous mint state example and one of only two known examples of the Three Brothers struck at Sivas (the other is Lot 538 in this auction), Unc.

Estimate: 3,000-4,000 USD