Euro banknotes a common theme of European architecture in various artistic eras. The obverse of the banknote features windows or gateways while the reverse bears different types of bridges. The architectural examples are stylised illustrations, not representations of existing monuments. All the notes of the initial series of euro notes bear the European flag, a map of the continent on the reverse, the name "euro" in both Latin and Greek script (EURO / ΕΥΡΩ) and the signature of a president of the ECB, depending on when the banknote was printed. The 12 stars from the flag are also incorporated into every note.
Euro banknotes root is calculated, give a checksum also particular to that country. The W, K and J codes have been reserved for the three EU member states that did not adopt the euro in 1999, while the R prefix is reserved for Luxembourg, which, at present, does not issue euro banknotes. The first series of uncirculated notes from Luxembourg use the prefix belonging to the country where they were printed. <br> checksum of the 11 digits without the letter <br> Denmark, the United Kingdom and Sweden presently do not use the Euro, but had these serial number prefixes reserved for the