晋朝大锭通宝3枚一组,光背1枚,背shen字1枚及背you字一枚,重4.2克,3.2克及3.7克,分别评中乾82,80及80。Jin Dynasty, a group of 3x Da Din Tong Bao, one with plain reverse, one with Chinese character Shen and one with You on reverse, weight 4.2g, 3.2g and 3.7g respectively, graded Zhong Qian 82, 80 and 80 (3).