Australia, High Relief Collection, 4 Piedfort Proof Silver Coins, 2012. Perth Mint Box & COA. This proof set contains a collection of four piedfort (double thickness) high relief silver proof coins each struck from one ounce of 99.9% pure silver and initially issued individually earlier in 2012. The four coins of the collection include the 2012 High Relief Australian Lunar Series II Year of the Dragon Silver Coin, the 2012 Australian High Relief Kookaburra Silver Coin, the 2012 Australian High Relief Kangaroo Silver Coin and the 2012 Australian High Relief Koala Silver Coin. Depicted on the reverse of the 2012 Year of the Dragon High Relief Silver Proof Coin is an image of the creature with the inscription of"Year of Dragon" seen below it. Also shown in the design is the Chinese character for dragon and a representation of the ‘pearl of wisdom. The 2012 Kookaburra High Relief Silver Proof Coin offers an image of the bird perched on a branch for its reverse design. Found on the reverse of the 2012 Kangaroo High Relief Silver Proof Coin is a single kangaroo placed in a traditional Australian bush scene complete with a windmill and a water tank. The reverse of the 2012 High Relief Koala Silver Proof Coin is the image of a sleeping koala draped around the branch of a eucalyptus tree.