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150 Dollars - Elizabeth II 4th Portrait - Wedge-tailed Eagle - Bi-Metallic Bullion Coin
| Issuer | Perth Mint, Australia |
|---|---|
| Year | 2018 |
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| Engraver(s) | Ian Rank-Broadley |
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| Obverse description | Log in to see details |
|---|---|
| Obverse script | Latin |
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| Edge | Reeded |
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| Additional information |
The Wedge-tailed Eagle bullion series, launched by the Perth Mint in 2014, was designed to compete directly with established bimetallic luxury issues like the Canadian Bimetallic Bullion coins — a market segment where Australia had no prior foothold. Combining a .9999 gold centre with a .9995 platinum ring, each piece requires precise bonding under controlled pressure; any thermal mismatch during striking can cause delamination, making consistent production genuinely difficult at this specification.
The 2018 issue is the fifth in the series. Annual design changes are a deliberate policy to drive collector demand alongside bullion value.