How much is the silver dollar for the two sails behind Sun Yat-sen's portrait?

This depends on the year. This kind of silver dollar was issued in the Republic of China for three years, 21 years, 22 years and 23 years. 2 1 year rarely has a trial period of only 22 years, and the largest amount is 23 years. It was issued after 38 years of the Republic of China (1949), which can be said to be a huge amount. The price is about 2 1 year, about 5000, about 600- 1000 in 22 years, and about 500 in 23 years, depending on the appearance. My humble opinion is to adopt.