元朝至正通宝折二背卯2枚,华夏78-80,尚·皮尔·米歇尔中国钱币系列,Yuan Dynasty, group of 2x Zhi Zheng Tong Bao, 2 cash, both the character Liu, weighs 6.1 grams and 6.8 grams, Huaxia 78 and 80 respectively (2)
元朝至正通宝折二背卯2枚,华夏78-80,尚·皮尔·米歇尔中国钱币系列,Yuan Dynasty, group of 2x Zhi Zheng Tong Bao, 2 cash, both the character Liu, weighs 6.1 grams and 6.8 grams, Huaxia 78 and 80 respectively (2)