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1 Dollar - Elizabeth II Challenger
| Issuer | Cook Islands |
|---|---|
| Year | 2005 |
| Type | Non-circulating coin |
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| Obverse description | Log in to see details |
|---|---|
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| Obverse lettering | ELIZABETH II COOK ISLANDS |
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| Reverse lettering | CHALLENGER 1 DOLLAR 2005 |
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| Additional information |
The Challenger Deep series was part of a broader Cook Islands commemorative program exploiting collector interest in oceanic exploration — a theme with no particular connection to the islands themselves. The RV Challenger expedition of 1872–76 remains the foundational voyage of modern oceanography, covering nearly 70,000 nautical miles and producing 50 volumes of scientific reports that took until 1895 to publish in full.