GREAT MONGOLS: Anonymous, ca. 1260s, AE dirham (5.64g), Bukhara, DM, A-A1979.3, mint name in obverse center, Chinese character ke ("tax") in reverse center, F-VF, R. This is the more common type of the Bukhara copper dirhams with Chinese character, and is normally dated AH663.
Estimate: 200-260 USD