Watch List notes:

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).

Estimate: 1000 - 1500