Atlanta Gold and Coin Buyers is currently offering a. 2012 China Chinese Year of the Dragon Proof Gold & Silver Colorized Coin Set w/ Box & COA (OGP). Please note that the gold coin has a small spot on the front and back. Please refer to the photos for additional details. Atlanta Gold & Coin Buyers. Rated Best Coin Dealer in Atlanta for the past three years By Kudzu. We place a strong emphasis on personalized customer service and go above and beyond to make sure that you’re satisfied.