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
Hong Kong five-dollar coin Hong Kong five-dollar coin The five dollar coin is the second-highest denomination coin of the Hong Kong dollar. It replaced the five dollar banknotes in 1976. It was first issued as a 10-sided coin in 1976, under British rule. The coin was also made of copper-nickel but weighed 10.76 grams, was 31 mm in diameter and 2.08 mm thick. The obverse featured Arnold Machin's portrait of Queen Elizabeth II and the inscription "Queen Elizabeth II". Its reverse featured a crowned British lion and the year of minting, as well as the country's name and the coin's denomination in both English