5 Dollars - Elizabeth II 4th Portrait - Finale - Centenary of Federation

Australia's Federation centenary in 2001 generated an enormous volume of commemorative output, but this piece stands apart for its holographic element — a technology the Royal Australian Mint had been refining through the late 1990s and deployed here at the close of the Federation commemorative program. The "Finale" designation marks it as the concluding release in a series that tracked the centenary across the year.

The Federation itself was a drawn-out political negotiation spanning decades, with the Commonwealth not proclaimed until January 1, 1901 — after multiple referenda and considerable colonial resistance, particularly from Western Australia.