The "Mob of Roos" reverse has appeared on the Australian dollar since Stuart Devlin designed it for the coin's 1984 introduction, but the gilded proof format — selectively plating the kangaroo group in .999 gold over a .999 silver field — is a relatively recent RAM production technique used to distinguish premium annual releases. At 155.575 grams, this is a five-ounce piece, a format the RAM has leaned on heavily for collector issues since the 2010s.
Ian Rank-Broadley's sixth portrait of Elizabeth II was adopted by the RAM in 2019, making 2020 only the second year of its appearance on Australian coinage before her death in 2022 rendered the entire sixth-portrait series a short run.
The "Mob of Roos" reverse has appeared on the Australian dollar since Stuart Devlin designed it for the coin's 1984 introduction, but the gilded proof format — selectively plating the kangaroo group in .999 gold over a .999 silver field — is a relatively recent RAM production technique used to distinguish premium annual releases. At 155.575 grams, this is a five-ounce piece, a format the RAM has leaned on heavily for collector issues since the 2010s.
Ian Rank-Broadley's sixth portrait of Elizabeth II was adopted by the RAM in 2019, making 2020 only the second year of its appearance on Australian coinage before her death in 2022 rendered the entire sixth-portrait series a short run.