The piece, which was crafted by the Perth Mint, is the world's biggest gold bullion coin and has a legal tender value of $1 million.It was transported to a museum in Vienna under the watchful eye of a team of experts, before going on display at Pro Aurum in Munich at the weekend.The Guinness World Record-holding coin was created to commemorate the 25th anniversary of the Australian Kangaroo Gold Coin program.Made up of 99.99 per cent pure gold, the coin tips the scales at one tonne and is 80cm in diameter and more than 12cm deep.The coin will be taken to Stuttgart and Berlin as part of a promotional tour before being returned to Australia next month.Perth Mint chief executive Ed Harbuz said Europe was the natural choice for the tour because it was the Mint's top investment market.The coin was designed by goldsmith Stuart Devlin and features the Queen's head on one side and a red kangaroo on the other.(au.news.yahoo.com)ANN.Az