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
New Zealand one-dollar coin used in coin fraud in the UK as they sometimes pass for £1 coins in vending machines. They can often be spent in shops too, especially the later head coins. New Zealand one-dollar coin The New Zealand one-dollar coin ($1) is a coin of the New Zealand dollar. The current circulating coin was introduced on 11 February 1991 to replace the existing $1 note. There had previously been occasional issues of commemorative "silver dollars", but they are rarely seen in circulation. The depiction of a kiwi on the reverse helps give the New Zealand dollar the colloquial name "Kiwi (dollar)",