1980 Olympic Silver Proof 4-Coin Set Summer & Winter Games China Mint. Football, Equestrian, Wrestling & Speed Skating At Lake Placid. The Chinese Olympic coins are in good condition. Box or holders may show shelf signs of shelf wear and/or tear. Total weight of all 4 coins: 65.1 g. 1980 China Olympics Commemorative 4pc Coin Set. Brilliant Uncirculated Silver Legal Tender Proof Set of 4 coins in presentation case issued by the Peoples Republic of China. The coins were minted by the China Mint. The listing is for the coin set only. The pictured item is the exact item you will receive. We strive to take the most accurate photos of our items because we believe grading and condition is very subjective. That is why we leave the final determination of the condition and grade to you. Please keep this in mind when submitting any questions regarding our items.