The 2005 Austria 2 euro commemorative coin marks the fiftieth anniversary of the Austrian State Treaty, a landmark document that restored the nation's sovereignty following the Allied occupation after the Second World War. The national side features a faithful reproduction of the signatures and seals found on the original treaty document, which was signed in the Belvedere Palace in Vienna on 15 May 1955. Below these historical seals, the design incorporates the heraldic colours of the Austrian flag through vertical hatching, a traditional numismatic technique for representing colour. By highlighting this pivotal moment in twentieth-century diplomacy, the coin commemorates the re-establishment of Austria as a free, independent, and democratic state. This commemorative issue was released in 2005 with a mintage of 688,000 pieces.