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10 Cents - Elizabeth II 4th Portrait - Koala - Silver Bullion Coinage
| Issuer | Perth Mint, Australia |
|---|---|
| Year | 2011 |
| Type | Non-circulating coin |
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| Obverse description | Fourth crowned effigy of Queen Elizabeth II facing right, designed by Ian Rank-Broadley, depicted wearing the Girls of Great Britain and Ireland Tiara. The legend 'ELIZABETH II AUSTRALIA 10 CENTS' arcs along the upper periphery, with the engraver's initials 'IRB' appearing below the truncation of the bust. The design is rendered in high relief against a frosted field typical of bullion coinage. |
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| Mintage | 2011 P - BU in Coincard - 26,509 |
| Additional information |
The Perth Mint's small-denomination silver bullion issues from this period occupy an awkward commercial niche — too heavy in silver content for face value to matter, too modest in weight to attract serious stacker interest. The 2011 Koala series was part of an annual program the Perth Mint had run since 1987, distinguished by a design change each year, a deliberate policy to drive collector demand rather than pure bullion appetite.
Ian Rank-Broadley's fourth portrait of Elizabeth II, introduced in 1998, was used across Australian coinage until Jody Clark's fifth portrait displaced it from 2019 onward.