200 Dollars - Elizabeth II 4th Portrait - Koala - Platinum

Australia's platinum koala series, launched in 1987, was among the first government-backed platinum bullion programs outside the Soviet Sovam issues, positioning Perth as an early mover in a metal that investors were only beginning to treat seriously. The 2003 one-ounce issue represents the series well into its mature phase, by which point the annual design rotation — new koala imagery each year — had become a deliberate strategy to encourage date collection alongside bullion holding.

Ian Rank-Broadley's fourth portrait of Elizabeth II, adopted for Australian coinage in 1999, appears here for the fourth consecutive year on this denomination.