GREAT MONGOLS: temp. Chingiz Khan, 1206-1227, AV dinar (4.2g), Bukhara, ND, A-B1967, totally anonymous, without even the caliph, mint name in obverse margin & below the reverse field, usual weakness, VF, RRR. There is an additional word below the obverse field, which seems to be kuyûk, the normal arabicized version of the name of the fourth Great Mongol khan Güyük, who ruled AH644-647 (1246-1249). If correct, this would be the first reported Great Mongol dinar in the name of Güyük.
Estimate: 1,000-1,500 USD