I have a question, why is the quality of the coin still good? Is those never been used before?
The coins were made by Shanghai Mint in China in 1986, in those 29 years the coins have never been removed from the original mint packaging and its the complete set of 1oz, 1/2 oz, 1/4 oz, 1/10 oz and 1/20 oz coins.
The 1/2 and 1/4 oz are the most expensive to source due to the low mintage figures.
Old Gold and Silver Panda's hold quite a high premium which will continue to rise in the future. Only selling these to fund another gold purchase.
http://www.ebay.com/sch/i.html?_from=R40&_sacat=0&_nkw=1986+gold+panda&_sop=3