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
Trillion dollar coin placed by former Fed Chair Ben Bernanke or one of the 12 Presidents of the regional Federal Reserve Banks. Former Director Diehl disagreed with Moy concerning a platinum bullion coin but agreed with Moy that a proof platinum coin would be a problem for the Fed. Diehl reiterated his view that "I certainly think [minting a trillion dollar coin] is inferior to raising or eliminating the [debt] limit but it's far better than defaulting and suffering the consequences of doing so." Trillion dollar coin The trillion dollar coin is a concept that emerged during the United States debt-ceiling crisis in