1 Dollar In the name of Elizabeth II, 6th Portrait - The Big Tasmanian Devil - Silver Proof

The Tasmanian devil (Sarcophilus harrisii) has been in steep decline since the 1990s due to devil facial tumour disease, a contagious cancer that has eliminated an estimated 80–90% of the wild population in some regions. The Royal Australian Mint's "Big" animal series uses the format as a fundraising-adjacent platform, with associated conservation programs tied to several releases.

Elizabeth II's sixth effigy — sculpted by Jody Clark — was introduced in Australia in 2015, making 2023 among the final years it appeared on new issues before the transition to Charles III coinage following the Queen's death in September 2022.