Bi-metallic coin dated 2006 (minted at Noida). Since 1996, Canada has also produced bi-metallic $2 coins (nicknamed "toonies"). Great Britain has issued a bi-metallic 2-pound coin since 1997; and Singapore has issued a bi-metallic 1-dollar coin since 2013. The first ever tri-metallic circulating coins were 20-francs coins introduced in France and Monaco in 1992. These were similar to the corresponding bi-metallic 10-francs coins, but had two rings instead of one. As well as circulating coins, where they are generally restricted to high-denomination coins, bi-metallic coins are often used in commemorative issues, often made of precious metals. For example, the only bi-metallic coin
Loonie original lucky loonie was donated to the Hockey Hall of Fame, and Canadians have subsequently hidden loonies at several international competitions. Loonies were buried in the foundations of facilities built for the 2010 Winter Olympics in Vancouver. Capitalizing on the tradition, the Royal Canadian Mint has released a commemorative edition "lucky loonie" for each Olympic Games since 2004. The weight of the coin was originally specified as 108 grains, equivalent to 6.998 grams. The coin's diameter is 26.5mm. When introduced, loonie coins were made of Aureate, a bronze-electroplated nickel combination. Beginning in 2007, some loonie blanks also began to be