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1 Dollar - Elizabeth II 4th Portrait - Zoo Series - Corroboree Frog
| Issuer | Royal Australian Mint |
|---|---|
| Year | 2012 |
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| Currency | Dollar (1966-date) |
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| Obverse description | The fourth portrait effigy of Queen Elizabeth II facing right, wearing the Girls of Great Britain and Ireland Tiara, as sculpted by Ian Rank-Broadley. The legend ELIZABETH II AUSTRALIA 2012 arcs around the upper field, with the designer's initials IRB appearing below the truncation. |
|---|---|
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| Obverse lettering | ELIZABETH II AUSTRALIA 2012 IRB |
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| Additional information |
The Corroboree Frog dollar was part of the Royal Australian Mint's "Mutant Mint" Zoo Series, a circulation-quality program aimed squarely at younger collectors. The Southern Corroboree Frog — one of the most acutely endangered vertebrates on the planet — had a wild population estimated at fewer than 50 individuals by the early 2010s, with captive breeding programs at Taronga and Melbourne Zoos effectively keeping the species from extinction. The coin's pad-printed color application was still a relatively novel technique for Australian circulation coinage at the time.