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Based on the pair of ruby slippers worn by Dorothy in Wizard of Oz, they are worth about £920,000.

This is the world's largest and most expensive gold coin, the "Canadian Gold Maple Leaf". The coin made of 99.999% pure gold, weighs 100 kilograms and is worth about 2 million euro (U.S. $ 3.2 million). For your information, Canadian Gold Maple Leaf is the official bullion gold coin of Canada and is produced by the Royal Canadian Mint.