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.
Banknotes of the Republic of Ireland prefix "T" on the serial number. A further complication is that the actual printing of banknotes is not necessarily undertaken in the country in which banknotes are given a serial number and released. The Central Bank of Ireland is the sole Irish printer of euro banknotes (in some other Eurozone countries, notes are printed by a private company commissioned to do so by the central bank, rather than the central bank itself). Any notes printed by the Central Bank of Ireland will have the prefix "K" before the series code in a small star on the front of the banknote.