Design
The coins are composed of two alloys. The inner circle is composed of three layers (nickel brass, nickel, nickel brass) and the outer ring of copper-nickel giving them a two colour (silver outer and gold inner) appearance. The diameter of the coins is 25.75 mm, the thickness is 2.20 mm and the mass is 8.5 grams. The coins' edges are finely milled with lettering, though the exact design of the edge can vary between states with some choosing to write the issuing state's name or denomination around the edge (see "edges" below). The coins have been used from 2002, though some are dated 1999 which is the year the euro was created as a currency, but not put into general circulation.
Read more about this topic: 2 Euro Coins
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