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Bi-metallic coins are coins consisting of more than one metal or alloy, generally arranged with an outer ring around a contrasting center. Common circulating examples include the €1, €2, British £2, Canadian $2, South African R5, and Turkish lira. Bi-metallic coins have been issued for a long time, with examples known dating from the 1600s, while the Roman Empire issued special occasion, large medallions with a center of bronze or copper and an outer ring of orichalcum, starting with the reign of Hadrian. The silver-center cent pattern produced by the United States in 1792 is another example. In recent times, the first circulating bi-metallic coin was the 500 Italian lire, first issued in 1982. France, with a 10 franc coin and Thailand, with a 10 baht, issued bi-metallic coins for circiraulation in 1988. India has released 10 Rupee bimetallic coins in 2009 that contains dateline of 2006 (minted at Noida) Indian Rs 10 Bi-Metallic CoinAs well as circulating coins, where they are generally restricted to high denomination coins, bi-metallic coins are often used in commemorative issues, they are used as a way of securing against coin counterfeiting. The manufacturing process is similar to that of ordinary coins, except that two blanks (the inner and the outer) are struck at the same time, deforming the separate blanks sufficiently to hold them together. From Wikipedia under the
GNU Free Documentation License Ronald Reagan Commemorative Coins Proposed
admin Wed, 29 Jul 2009 22:56:01 GM dollar introduced in 2008 (Ronald Reagan Centennial Act). There have also been two commemorative . coin. program proposals in 2005 and 2006, which would have created $5 gold, $1 silver, and $10 gold and platinum . bimetallic coins. . ... Numismatters - The Official Euro Collections International Blog ...
Euro Collections International Fri, 19 Sep 2008 13:42:01 GM In 2002 a series of . bi-metallic. Russian . coins. featuring ancient towns was begun by the Central Bank of Russia. Each year . coins. were produced that pay tribute to a different city in Russia, where the city was established anywhere between ... Bob Marley Commemorative Coins 2006 (Jamaica)
unknown ue, 05 Sep 2006 16:53:01 GM Bob Marley Commemorative . Coins. 2006-Main. The Bank of Jamaica (BOJ) is set to unveil 1000 gold and silver . coins. in honor of the Honorable Robert Nesta Marley's 60th birthday. The $50 denomination . bi-metallic coin. manufactured in 2005, ... From Google Blog Search: "Bimetallic Coins" Counterfeit British Pound Easy to Make
NumisMaster.com It appears the same technology may be able to help detect counterfeit coins even if the coins are not struck on ringed- bimetal blanks. ... Latvia Wins 2010 Coin of the Year Award, Hungary Takes People's Choice
CoinNews.net (press release) This year's Trade coin category winner is a bimetallic 2-euro coin issued by the Central Bank of Cyprus. The coin depicts an ancient statue cross. ... Krugman's China Hit-Job Is More Blame-The-Victim Nonsense
The Business Insider A century earlier, the currencies of all other major Western countries in 1821 were either bimetallic or specie-backed paper money. ... and more » From Google News Search: "Bimetallic Coins" From Yahoo Image Search: "Bimetallic Coins"
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