中国银行一对趣味号20元,2008年北京奥运主题及2022年北京冬奥主题,编号分别為BJ666669及666669,均评PMG 66EPQ,一对精美的对号纸币。Bank of China, lot of 2x Commemorative $20 s with matching fancy serial numbers: 2008 Beijing Summer Olympics BJ666669 aand 2022 Beijing Winter Olympics 666669,(Pick 340a and 353a), both graded PMG 66EPQ Gem Uncirculated. A fabulous matching number pair (2)