http://search.ebay.com/251122832257 http://search.ebay.com/271030314923 For some unknown reasons, I love this 1984 PRC 35th Anniversary proof set. It came in at least 2 packaging that I know of. One is 3 pcs set in plastic case, another is 2pcs in plastic + 1 pcs in a card. These proof set were minted in Shenyang, and Shanghai. The Mint never disclosed the real mintage. It is said that Shanghai Mint never release the proof set due to a major design error. It was in 2007 (if I remembered correctly) collector discovered the Shanghai Mint proof set, and price jump within very short time. 50 sets were found in a Shanghai dealer's inventory. I believe this Shanghai Mint proof set is one of the most (if not the most) expensive set of modern China regular commemorative proof coins.