1980年中国人民银行冬季奥运会1元精铸铜币一组4枚,包括“滑冰”、“花式滑冰”,“高山滑雪”及“马术”,分别NGC PF66 Cameo,PF66 Cameo,PF65 Cameo及 PF67 Cameo,#3944505-031,#3944505-058,#3944505-017 及 #3944505-110。People s Bank of China, group of 4x brass proof 1 yuan, 1980, issued for the Winter Olympics, Speed Skating, Figure Skating, Alpine Skiing and Equestrian,graded NGC PF66 Cameo, PF66 Cameo, PF65 Cameo and PF67 Cameo respectively, #3944505-031, #3944505-058, #3944505-017 and #3944505-110. (4)