2010 $1 Australian Centenary of Flight 1oz Silver Coloured Proof CoinThe development of successful flying machines at the beginning of the 20th century offered significant benefits to Australia. To promote interest in aviation, the Australian Aerial League invited Harry Houdini to fly his French designed Voisin biplane during his 1910 tour of the country. The coins reverse depicts Houdini's Voisin airplane in colour. The image overlays words from a typical poster publicising Houdinis stunt. As well as The Perth Mint's