明朝天启通宝背十一两3枚,重量32.1-33g,华夏75-80,尚·皮尔·米歇尔中国钱币系列,Ming Dynasty, group of 3x Tian Qi Tong Bao, with the characters Shi Yi Liang on reverse, weighs from 32.1 grams to 35.4 grams, Huaxia 75, 78 and 80 (3)
明朝天启通宝背十一两3枚,重量32.1-33g,华夏75-80,尚·皮尔·米歇尔中国钱币系列,Ming Dynasty, group of 3x Tian Qi Tong Bao, with the characters Shi Yi Liang on reverse, weighs from 32.1 grams to 35.4 grams, Huaxia 75, 78 and 80 (3)