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
Dollar coin (United States) dollar coin is the same size and composition as the Sacagawea dollar. "In God We Trust", the issue year, and the mint mark appear on the edge. The first dollar, honoring George Washington, was released into circulation on February 15, 2007. However, became law on December 26, 2007 which moved "In God We Trust" from the edge to the obverse. A common minting error on this coin, estimated at 80,000, from a mintage of 300,000,000 coins, is the omission of the edge lettering causing a plain outside edge. Because the omission includes the words "In God We Trust", some in