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1 Dollar - Elizabeth II 4th Portrait - Koala - Silver Bullion Coin
| Issuer | Perth Mint, Australia |
|---|---|
| Year | 2010 |
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| Engraver(s) | Ian Rank-Broadley |
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| Obverse description | The fourth portrait effigy of Queen Elizabeth II faces right, modelled by Ian Rank-Broadley, wearing the Girls of Great Britain and Ireland Tiara. The truncated bust is rendered in fine detail, with the engraver's initials IRB visible below the neck. The encircling legend reads ELIZABETH II · AUSTRALIA 2010 · 1 DOLLAR ·, separated by raised dot stops, occupying the broad outer rim. |
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| Edge | Reeded |
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| Additional information |
Australia's silver koala bullion series launched in 2007 as Perth Mint's answer to the Kookaburra, which had run since 1990. Unlike the Kookaburra, the Koala series changes its reverse design annually — a deliberate strategy to encourage year-set collecting rather than purely weight-driven accumulation. The 2010 issue was produced during a period of sharply rising silver prices that preceded the metal's April 2011 spike toward $50 USD per troy ounce, driving unusually strong retail demand for Perth Mint's one-ounce silver products across that vintage.