Titanium Mans Ring
Bimetallic coins are called to those which are formed by two or more different metal parts. This format is most often used in new issues from different countries, thus displacing polygonal currency as a significant element within a growing monetary cone. Usually coins issued in this format are the maximum facial circulation. The Mexican peso was the first bimetallic coin issued in Spanish. The first bimetallic currency issuing country worldwide circulation was Italy. In 1982, the Mint of Rome, Istituto Poligrafico e Zecca dello Stato, surprised the world with a 500-lire coin very particular. This consisted of a brass circle inscribed within a stainless steel ring. San Marino and the Vatican shared monetary system followed in the wake of Italy and also issued his 500 liras bimetallic format. Years later, in 1987, Morocco issued with blanks 500 lire coin their new coins of 5 Dirhams and a year later France and Monaco, with its currency of 10 Francs and Thailand, with its currency of 10 Baht, followed example of Italy. In 1992, the Monnaie de Paris came to the fore of international numismatics introducing a new type of bimetallic coin. The new 20-franc coin was composed of three concentric rings instead of two, a center of brass with a nickel crown inscribed on a brass ring, this coin was known worldwide as tri currency. Since then, many countries in the world bimetallic coins issued for circulation and current use. For this use, most used metallic hues are combinations of gold with silver metals. There are other combinations possible, but rare: the currency of 50 Czech crowns combines his titanium mans ring copper and gold in the center, the 2 Naira in Nigeria using copper and nickel in the titanium mans ring in the center, and 10 coin Algeria Dinars uses two metals of the same color but different gray tones: steel and aluminum titanium mans ring at the center. Other countries have used this format bimetallic commemorative coins for a level and quality appreciated by all numismatic collectors. These coins are manufactured by combining precious metals like gold or silver or altered them more innovative as niobium, titanium mans ring or tantalum. There are many countries issuing commemorative coins bimetallic movement in thin metals. In theory, these coins are official means of payment, but in practice, the value of the metals that are produced far exceeds the face value of the pieces, making it almost impossible and unrealistic to see them in circulation. . . .