1000 Dollars - Elizabeth II 4th Portrait - Australian Nugget - Gold Bullion Coin

The Australian Nugget — later rebranded the Australian Kangaroo — is one of the few major bullion programs to change its reverse design annually, a policy the Perth Mint adopted from the outset to discourage melting and stimulate collector demand alongside investor buying. The one-kilogram denomination sits at the top of the standard bullion range and was struck in comparatively small numbers each year relative to the smaller fractionals.

The fourth portrait of Elizabeth II, by Ian Rank-Broadley, was introduced across Australian coinage in 1999 — the same year this date range opens.