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50 Dollars - Elizabeth II 4th Portrait - Koala - Gold Bullion Coin
| Issuer | Perth Mint |
|---|---|
| Year | 2006 |
| Type | Log in to see details |
| Value | Log in to see details |
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| Composition | Log in to see details |
| Weight | Log in to see details |
| Diameter | Log in to see details |
| Thickness | 2.4 mm |
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| Obverse description | Log in to see details |
|---|---|
| Obverse script | Log in to see details |
| Obverse lettering | Log in to see details |
| Reverse description | Log in to see details |
| Reverse script | Latin |
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| Edge | Reeded |
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| Additional information |
Australia's gold koala bullion series, launched by the Perth Mint in 1980, was among the first national bullion programs to change its reverse design annually — a deliberate strategy to discourage melting and encourage collector retention alongside investor demand. By 2006, that annual-change policy had been in place long enough that earlier-dated issues were already trading at premiums well above spot, validating the approach entirely.
The .9999 fineness here is worth noting for its period context: four-nines gold was not yet universal among sovereign bullion programs in the mid-2000s, and the Perth Mint used it as a competitive differentiator against the South African Krugerrand's .9167 standard.