The subject of the document is yuan Datou in the four year of the Republic of China. The collection is of high quality. The coating is natural and warm, and the edges and teeth are regular. In recent two years, due to China's strengthened attention to the cultural industry, the value of art has increased. As one of the three major collections, coins are also concerned by many investors and collectors. Because of the small amount of silver coins, the coins were issued in a small amount. Therefore, there are investment enthusiasts and collectors, it is suggested to start with the collection