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
History of the Canadian dollar to feature the monarch on the obverse of all coins, but introduced new patterns for the reverse of each coin: These designs were all the work of Emanuel Hahn. With the exception of the withdrawal of the penny, these designs continue to be the basic features of Canadian coinage. This series of coins was augmented in 1987 by the introduction of a new one-dollar coin, featuring a loon on the reverse, designed by Robert-Ralph Carmichael. The coin quickly became known as the "loonie", which in turn has become a nickname for the Canadian dollar generally. The loonie was followed by