This is a beautiful and very rare set of Chinas First Bi-Medal Proof Set, only 2000 sets of these were minted. This set contains two coin and each coin contains 1/2ozt of 99.9% Pure Gold and 1/5ozt of 99.9% Pure Silver, with a total of 1/2oz 99.9% Gold and 2/5ozt 99.9% Silver. This set comes with the box, certificate of authenticity and the original sales receipt from March 1991. Livermore Coin & Bullion, Inc. Livermore Coin& Bullion, Inc. To Insure You Receive Your Package Safely We Only Use Premium Packing Materials. We Will Always Disclose Any Issues There May Be with an Item, We will Never Mislead You Just to Make a Sale. Our Repeat Customers Mean the World to Us Because it Means That We Have Earned Your Trust.