Australia 2012 1$ The Wombat 2012. Australian Opal Series Proof Silver Coin
Australia has been a Terra Incognita for a very long period of time. Now that people know how many natural wonders were hidden from their eye, they try to eliminate the knowledge gap and popularize the wild nature of the green continent. In 2012 the country has even issued a coin that unites two natural wonders that can be found in Australia. The first of them is opal, while the other is wombat.