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2 Dollars - Elizabeth II 4th Portrait - Mini Koala, Gold Bullion Coin
| Issuer | Perth Mint, Australia |
|---|---|
| Year | 2015 |
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| Composition | Log in to see details |
| Weight | 0.5 g |
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| Obverse description | Log in to see details |
|---|---|
| Obverse script | Latin |
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| Reverse lettering | P 0.5 GRAM 9999 GOLD |
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| Additional information |
The Mini Koala series was Perth Mint's calculated entry into the fractional gold bullion market, targeting collectors priced out of full-sovereign formats. At half a gram, it sits at the absolute lower threshold of practical gold coinage — any smaller and manufacturing tolerances would make consistent fineness impossible to guarantee. Perth's reputation for .9999 four-nines purity was itself hard-won; the refinery only achieved that standard commercially in the 1980s, distinguishing it from most government mints still working at .999.
Ian Rank-Broadley's fourth portrait of Elizabeth II, used here, was already being phased out globally by 2015 in anticipation of Jody Clark's fifth effigy — making late fourth-portrait issues quietly transitional.