Are foreign banknotes with red and blue lines real or fake?
I just got some uncirculated foreign banknotes today that I bought on ebay. They're all uncirculated and I noticed that most of them have little red and blue fibers on them. They all have watermarks and all feel rough when you touch them. I've received banknotes like this before. Whenever I tried to look up if the foreign banknotes with the red and blue lines are real or not, I would always see websites on how to detect counterfeit US money and not foreign currency.