China PR.; 2022, "Bank of China", "Beijing 2022 Olympic Games", commemorative polymer banknote $20, P.#916a, sn. J154340050, PMG Superb Gem UNC 68EPQ; "Beijing Winter Olympic Games", commemorative banknote $20, P.#918, sn. J248433099, PCGS Superb Gem UNC 67PPQ; 2018, "Year of Dog", gold colorized, weight 0.1 gms., 0.999 gold; PMG 70 Seventy Gem UNC star; UNC.(3)