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50 Dollars - Elizabeth II 4th Portrait - Platypus - Platinum Bullion Coin
| Issuer | Perth Mint, Australia |
|---|---|
| Year | 2010 |
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| Reference(s) | KM#1410 |
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|---|---|
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| Obverse lettering | ELIZABETH II AUSTRALIA 50 DOLLARS IRB |
| Reverse description | The reverse features a stylised Aboriginal dreamtime representation of a platypus rendered in the dot-art tradition, depicted frontally with outstretched limbs against a pad-printed turquoise and blue decorative background evoking water. The design, part of the Discover Australia series, is executed in coloured relief with the Perth Mint's 'P' mintmark incorporated centrally within the composition. The surrounding legend arcs along the upper and lower periphery of the field, recording the series title, species name, date, denomination weight, and metal purity. |
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| Additional information |
Perth Mint introduced platinum platypus bullion coins in 1988, making the series one of the earliest government-backed platinum bullion programs in the world — predating many competitors by years. By 2010, the fourth portrait of Elizabeth II by Ian Rank-Broadley had been in use on Australian coinage for over a decade, having replaced the Raphael Maklouf effigy in 1999. The "pad printed" composition notation signals a security feature applied to this issue, an anti-counterfeiting measure Perth employed selectively on certain bullion denominations during this period.