When you’re within the U.S., all real bills may have a watermark of the person whose portrait is within the bill. They’ll also have a protection thread embedded within the paper that glows below ultraviolet light. Our banknotes are printed on seventy five% cotton 25% linen, similar as real currency. https://rafaelymhas.alltdesign.com/the-copyright-dollars-in-usa-diaries-53117272