HONG KONG: 20 Dollars (2008) commemorative issue for the 2008 Olympic Games in light blue on multicolor unpt. Bank of China building, classical Greek column and Bejing Olympic logo on face. S/N: "923808" without prefix letters. Inside holder by PMG "Gem Uncirculated 66 EPQ". (Pick 340b) & (Spink BOC BNP2a).