Check out the following website for the answers to just about any question you might have about Euro banknotes and coins:
European Central BankThis information is widely available online. Google is a great source of information too. I encourage you to search for your answers online before posting questions about widely available information.
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BWJM, F.O.N.A.
Life Member of CPMS, RCNA, ONA, ANA, IBNS, WCS.
President, IBNS Ontario Chapter.
Treasurer, Waterloo Coin Society.
Show Chair, Cambridge Coin Show.
Fellow of the Ontario Numismatic Association.