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
Trade dollar (United States coin) Reserve banks and national banking associations), regardless of when coined or issued, shall be legal tender for all debts, public and private, public charges, taxes, duties and dues." However, the numismatic and bullion value of any trade dollar far exceeds its face value of one dollar. Because of its demand by collectors a large number of counterfeits exist made with base metal, and buyers should exercise caution when purchasing specimens. Trade dollar (United States coin) The United States trade dollar was a dollar coin minted by the United States Mint to compete with other large silver trade coins that were