2008及2022年中国银行20元一对,分别為北京奥运及冬季奥运纪念版,相乎趣味号BJ66669 及 66669,均评PMG 66EPQ,两场运动会皆為中国主办,意义非凡的一对。Bank of China (Hong Kong) Limited, matching serial number pair $20, 2008, 2022, in commemoration of Beijing Olympic and the XXIV Olympic Winter Games respectively, identical near-solid serial number 666669, (Pick 340a and 353a), both graded PMG 66EPQ Gem Uncirculated (2)