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500 Dollars - Elizabeth II 4th Portrait - Koala - Gold Bullion Coin
| Issuer | Perth Mint, Australia |
|---|---|
| Year | 2015 |
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| Value | Log in to see details |
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| Composition | Log in to see details |
| Weight | 155.5 g |
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| Obverse description | Log in to see details |
|---|---|
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| Reverse description | A highly detailed, naturalistic depiction of an adult koala (Phascolarctos cinereus) clinging to the trunk of a eucalyptus tree in the left field, its distinctive large ears, rounded nose, and dense fur rendered with exceptional relief and texture. The background features a sparsely detailed open Australian landscape with native grasses. The legend 'AUSTRALIAN KOALA' arcs along the upper rim, while the inscriptions '2015 5oz 9999 GOLD' appear in a straight line along the lower field. The Perth Mint 'P' mintmark is positioned to the right of the koala in the mid-field. |
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| Reverse lettering | AUSTRALIAN KOALA IJ P 2015 5oz 9999 GOLD |
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| Additional information |
The Perth Mint's 155.5g gold Koala series occupies an unusual position in the Australian bullion market — unlike the Kangaroo series, whose design changes annually, the Koala program has historically refreshed its reverse imagery each year specifically to discourage melting and encourage collector retention. By 2015, this had become a deliberate commercial strategy to differentiate the series from purely weight-driven bullion competitors.
The .9999 fineness here is not incidental. Australia pushed to that four-nines standard ahead of most sovereign mints, partly in response to demand from Asian markets — particularly China — where purity specifications above .999 carried significant premiums at retail.