1980年四枚精製套币。奥林匹克系列，冬季运动会。 一枚速度滑冰有几处斑点。其他无氧化，朦胧或起雾。1）黄铜製，1元。花样滑冰。KM-19. NGC PF 68 ULTRA CAMEO。2）黄铜製，1元。冬季两项。KM-20. NGC PF 68 ULTRA CAMEO。3）黄铜製，1元。高山滑雪。KM-21. NGC PF 67 ULTRA CAMEO。4）黄铜製，1元。速度滑冰。KM-22. NGC PF 67 ULTRA CAMEO。
CHINA. Proof Set (4 Pieces), 1980. Olympic Series, Winter Games. All NGC Certified. The Speed skater has a couple of spots. Otherwise all are free of tone, haze or fog.1) Brass Yuan. Figure Skater. KM-19. NGC PF 68 ULTRA CAMEO.2) Brass Yuan. Biathlon. KM-20. NGC PF 68 ULTRA CAMEO.3) Brass Yuan. Alpine Skier. KM-21. NGC PF 67 ULTRA CAMEO.4) Brass Yuan. Speed Skater. KM-22. NGC PF 67 ULTRA CAMEO.
