YUAN: Da Yuan, 1310-1311, AE 10 cash (21.42g), H-19.46, ta üen tong baw in Mongol Phags-pa script (da yuan tong bao in Chinese), Graded 80 by GBCA Grading Company. 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.