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100 Dollars - Elizabeth II 4th Portrait - Kangaroo - Gold Proof High Relief
| Issuer | Perth Mint, Australia |
|---|---|
| Year | 2015 |
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| Currency | Dollar (1966-date) |
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| Obverse description | Log in to see details |
|---|---|
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| Edge | Reeded |
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| Mintage | 2015 P - Proof |
| Additional information |
Perth Mint introduced high-relief gold proof technology to its bullion-adjacent premium issues in the early 2010s, borrowing production methods originally developed for ancient coinage — specifically the multi-strike pressing under higher tonnage that pulls metal into deeply recessed dies. The result is a cartwheel-flat field with subject matter that rises sharply from the surface, impossible to achieve in a single strike.
The 2015 date places this within Ian Rank-Broadley's fourth portrait tenure, which ran from 1998 until Jody Clark's effigy was adopted by Australian mints from 2019 onward.