2007 Canada $20 Sterling Silver Polar Year: Plasma Coin - Gem in Box w/ COA
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Issued to mark Canada's recognition of the 125th anniversary of the first International Polar Year, when the first of several coordinated multinational research expeditions to the Arctic and Antarctic were launched. The coins prominently feature Sir Martin Frobisher who, in 1576, was the first to attempt to discover the Northwest Passage aboard the Gabriel. A ship appears alongside a 16th century compass and an Inuit paddling a traditional kayak.
The reverse is finished in stunning metallic blue hues, achieved through a unique, leading edge plasma effect. The RCM is the first Mint in the world to produce this jewel-like finish on a coin, by virtue of a proprietary coating which can produce different colours by varying its thickness. The blue effect was chosen to evoke the cold climate of both poles.