明朝天启通宝,背十下星,明朝第十五位皇帝明熹宗朱由校天启元年(公元1621年)开铸,46.6x2.0mm,重19.5克,中乾评82,上佳品相。China: Ming Dynasty, Tian Qi Tong Bao, 10 cash, (1368-1644), rev: Shi (Ten) at upper quadrant, star at lower quadrant, 46.6x2.0, 19.5g, Zhong Qian 82. A desirable large sized coin. Zhu You Jiao (1605-1627, r. October 1620-1627), the 15th Ming Emperor. Era name: Tian Qi (Heavenly Opening). . [219]