1980年精製套币四枚一组。奥运系列。 均获NGC评级,镜面底板,霜化图文,部分有氧化。1)冬季两项(PF67 CAMEO)。2)速度滑冰(PF67 ULTRA CAMEO)。3)花样滑冰(PF69 CAMEO)。3)高山滑雪(PF67 CAMEO)。
CHINA. Proof Set Yuan Quartet (4 Pieces), 1980. Olympic Series. All NGC Certified. 1) Biathlon. PROOF-67 Cameo. KM-PS52) Speed Skating. PROOF-67 Cameo. KM-PS53) Figure Skating. PROOF-69 Cameo. KM-PS54) Alpine Skiing. PROOF-67 Cameo. KM-PS5