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 exclusive right to authorise the issue of notes within the Eurozone, but most notes are actually issued by the National Central Banks (NCBs) of the Eurozone. As of 2004, 8% of banknotes issues were allocated to the European Central Bank and 92% were allocated to Eurozone NCBs (in practice, the ECB issues no notes and the NCBs' issues may deviate from the statutory allocation). The issuing central bank can be seen from the serial number. Each NCB is now responsible for the production of certain denominations, as assigned by the ECB. Since 2002, euro notes have been printed by the