Catalog
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| Issuer | Royal Australian Mint |
|---|---|
| Year | 2021 |
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| 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 | Log in to see details |
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| Technique | Milled, Colored |
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| Obverse description | Concave field bearing the sixth-portrait effigy of Queen Elizabeth II facing right, diademed with the King George IV State Diadem and wearing the Victorian Coronation Necklace, as sculpted by Jody Clark; the weight denomination appears below the effigy, surrounded by stylized depictions of the planets of the solar system. The legend ELIZABETH II AUSTRALIA ONE OUNCE FINE SILVER is arranged around the periphery, with the engraver's initials JC appearing at the truncation. |
|---|---|
| Obverse script | Latin |
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| Reverse description | Log in to see details |
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| Additional information |
The Royal Australian Mint's domed silver series exploits the concave surface not merely as a gimmick but as a functional optical element — the curvature is calculated to mirror the apparent dome of the night sky as seen from the Southern Hemisphere. Australia's geographic position gives it privileged access to the galactic core of the Milky Way, which sits higher in the southern sky than it ever appears at comparable northern latitudes, a fact that informed the specific orientation used in the pad-printed color application.
Pad printing on a curved silver flan presents adhesion challenges that standard coin printing avoids entirely. The ink must be transferred via a silicone pad that deforms to match the dish, making registration across multiple color passes unusually difficult at this diameter.