請問過1 年後,增值多少錢??有郵幣社的行家來答覆??央行蛇年套幣(每套1900元)https://tw.news.yahoo.com/%E5%A4%AE%E8%A1%8C%E8%9B%87%E5%B9%B4%E5%A5%97%E5%B9%A3%E9%96%8B%E8%B3%A3-%E5%8D%B3%E8%B5%B7%E7%B6%B2%E8%B7%AF%E9%A0%90%E8%B3%BC%E9%99%90%E9%87%8F8%E8%90%AC%E5%A5%97-023247465.html