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500 Dollars - Charles III 1st Portrait - Australian Wedge-Tailed Eagle - Gold Proof Ultra High Relief Gilded
| Issuer | Perth Mint, Australia |
|---|---|
| Year | 2025 |
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| Composition | Gold (.9999) (22-carat rose gold gilding) |
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| Obverse description | The obverse features a finely sculpted effigy of King Charles III in uncrowned right-facing left profile, rendered in ultra high relief with pronounced sculptural depth accentuating the facial contours and collar details. The portrait, attributed to engraver Dominic Tate and bearing the initials 'DT' below the truncation, is the first official portrait of the King used on Australian coinage. The legend 'CHARLES III' arcs across the upper left field and 'AUSTRALIA' continues along the upper right, both incused in bold Roman capitals against a contrasting dark background sector. The denomination '500 DOLLARS' is inscribed in large letters along the lower arc, flanked by raised dot stops, with the entire design enhanced by a 22-carat rose gold gilding applied to the coin's surfaces. |
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| Mintage | 2025 P - Gilded Proof - 70 |
| Additional information |
The wedge-tailed eagle series from Perth Mint has run long enough to accumulate genuine collector infrastructure, but the ultra high relief gilded variant occupies a specific technical niche: layering 22-carat rose gold over .9999 fine gold requires precise differential surface preparation, since standard gilding adhesion techniques risk contaminating the base planchet's purity designation. Perth has refined this process across earlier releases in the program.
Five troy ounces at this relief depth also demands extended die life management — UHR strikes at this weight class typically require multiple blows, and die fatigue at the high-relief field boundaries is a documented production constraint for coins in this mass range.