YUAN: Da Yuan, 1310-1311, AE 10 cash (24.99g), H-19.46, ta üen tong baw in Mongol Phags-pa script (da yuan tong bao in Chinese), minor natural casting defects, Graded 78(07) by GBCA Grading Company, VF, ex Dr. Dirk Löer Collection. Külüg Khan (Da Yuan), born Khayishan, meaning "wall" in Mongolian, was an Emperor of the Yuan Dynasty and is regarded as the seventh Great Khan of the Mongols in Mongolia. His name means "warrior Khan" or "fine horse Khan" in the Mongolian language.