150 Dollars - Elizabeth II 4th Portrait - Sturts Desert Rose - Gold Proof

Sturt's Desert Rose — correctly Gossypium sturtianum, named for the explorer Charles Sturt — was adopted as the floral emblem of the Northern Territory in 1961. The Royal Australian Mint's floral emblem series ran through the early 2000s, issuing a $150 gold proof for each state and territory emblem, with this piece representing the NT's contribution to that set.

Ian Rank-Broadley's fourth portrait of Elizabeth II, introduced in 1998, appears here in its earliest decade of Australian gold proof usage.