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1 Dollar - Elizabeth II 4th Portrait - Australian Centenary of Flight
| Issuer | Perth Mint, Australia |
|---|---|
| Year | 2010 |
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| Composition | Silver (.999) |
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| Reverse script | Latin |
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| Edge | Reeded. |
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| Additional information |
Australia's centenary of flight commemoration marks a century from Josephoel's first powered flight on Australian soil — a hop of roughly 100 metres at Narromine, New South Wales, in 1910, made by John Robertson Duigan in a biplane he built largely from scratch using plans derived from published accounts of the Wright Brothers' machine. Duigan had no formal engineering training. The Perth Mint issued this coin as part of a broader program of themed commemoratives that expanded sharply during the 2000s alongside growing collector demand for .999 silver dollars.