I don't usually buy bullion rounds but I was at my favorite coin store the other day and I saw these. They are one ounce silver rounds put out by some company, I think, to celebrate their 10th anniversary. They, he had a roll, feature a dragon and peacock on the reverse and the company logo on the obverse. The dragon was the first thing to draw me in then I saw the edge. All 20 coins had this dark toning all around the coin with the toning starting to creep over the main surfaces. I bought one of the rounds in the hopes of watching the toning progress over the rest of the coin.