China; AD960-1368, Lot of 2 ancient coins. AD1271-1368, Yuan Dynasty, “Da Yuan Tong Bao”, bronze coin 10 cash, diameter 42.5 mm, weight 20.6 gms & AD960-1127, Song Dynasty, "Chong Ning Zhong Bao", bronze coin 5 cash, diameter 36.2 mm, weight 9 gms EF.(2) Both Certified by the China grading service Zhong Qian Ping Ji