Although the Mint has produced many special edition coins in recent years, Canada does have a history of such coins. From 1943 to 1945, the Mint issued the "Victory nickel" to promote the Canadian war effort. In 1951 a circulating commemorative coin, a 5 cent piece for the bicentennial of the discovery of the element nickel, was released. In 1967, all Canadian coins were issued with special reverses to celebrate the Canadian centennial. Six years later, a "Mountie quarter" was issued in 1973 to commemorate the centennial of the Royal Canadian Mounted Police.