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
Crown (British coin) with the British trade dollar that circulated in the Orient. In 2014, a new world record price was achieved for a milled silver crown. The coin was issued as a pattern by engraver Thomas Simon in 1663 and nicknamed the "Reddite Crown". This was presented to Charles II as the new crown piece but was ultimately rejected in favour of the Roettiers Brothers' design. Auctioneers Spink & Son of London sold the coin on 27 March 2014 for £396,000 including commission. After decimalisation on 15 February 1971, a new coin known as a 25p (25 pence) piece was introduced. Whilst