大元通宝当十。CHINA. Yuan Dynasty. 10 Cash, ND (1310-11). Wu Zong (Zhi Da [Khayishan]). VERY FINE Details. 大元通宝当十。重19.16克。正面大元通宝,背空白。铸工佳,细节清晰,有厚重的绿色结壳。<p>CHINA. Yuan Dynasty. 10 Cash, ND (1310-11). Wu Zong (Zhi Da [Khayishan]). VERY FINE Details.Hartill-19.46; FD-1733; S-1099. Weight: 19.16 gms. Obverse: "Da Yuan tong bao"; Reverse: blank. A well made coin, with details still visible but now encrusted with thick green oxidation.