中国1980年奥运1元黄铜币4枚一组,包括骑马、滑雪、溜冰及足球等4项体育运动,评PCGS PR63CAM,PR63DCAM,PR64DCAM及PR64DCAM, People s Republic of China, complete set of 4 brass 1 yuan issued to commemorate the 1980 Lake Placid Olympics, each featuring a sport: Equestrian , Alpine Skiing , Speed Skating and Soccer ,all graded by PCGS PR63CAM, PR63DCAM, PR64DCAM and PR64DCAM respectively (4)