元朝至正通宝折二背卯2枚,华夏75-78,尚·皮尔·米歇尔中国钱币系列,Yuan Dynasty, group of 2x Zhi Zheng Tong Bao, 2 cash, both with the character Liu on the reverse, weighs 5.3 grams and 5.9 grams, Huaxia 78 and 75 respectively (2)
元朝至正通宝折二背卯2枚,华夏75-78,尚·皮尔·米歇尔中国钱币系列,Yuan Dynasty, group of 2x Zhi Zheng Tong Bao, 2 cash, both with the character Liu on the reverse, weighs 5.3 grams and 5.9 grams, Huaxia 78 and 75 respectively (2)