Language and the euro a final "-o" (like "euro" from "Europa"), other linguists, like Ramón d'Andrés, defend the spelling "euro". Bulgarian uses Cyrillic. The current design of euro banknotes, except for the "new" €5, €10, €20, €50, and upcoming €100 banknotes, has the word "euro" written in Latin and Greek alphabets. The 2013 design of the € 5 banknote introduced Cyrillic, adopting the spelling ЕВРО, as described below. When Bulgaria issues Euro coins, if the Greek model is followed, the alternative spelling will go on the national (obverse) side. In popular Bulgarian usage the currency is referred to as евро and, less often, (from
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.