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
Counterfeit banknote detection pen Counterfeit banknote detection pen A counterfeit banknote detection pen is a pen used to apply an iodine-based ink to banknotes in an attempt to determine their authenticity. Counterfeit banknote detection pens are used to detect counterfeit Swiss franc, euro and United States banknotes, amongst others. Typically, genuine banknotes are printed on paper based on cotton fibers and do not contain the starches that are reactive with iodine. When the pen is used to mark genuine bills, the mark is yellowish or colourless. Such pens are most effective against counterfeit notes printed on standard printer or photocopier paper. The chemical properties