Catalog
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| Issuer | Perth Mint, Australia |
|---|---|
| Year | 2021 |
| Type | Log in to see details |
| Value | Log in to see details |
| Currency | Dollar (1976-date) |
| Composition | Log in to see details |
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| Diameter | Log in to see details |
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| Shape | Log in to see details |
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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 |
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| Edge | Reeded |
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| Mintage | 2021 P - Antiqued - 2,500 |
| Additional information |
The "Hourglass" belongs to Perth Mint's Shapes series, which began leaning heavily into rimless, curved, and sculptural formats after the secondary collector market demonstrated consistent premiums for geometrically unusual blanks. Perth developed its own proprietary pressing techniques to achieve the meniscus profile without cracking the high-purity .9999 silver — a purity level that makes blanks more ductile but also more prone to flow lines under unconventional die geometry.