If you’re from the U.S., all real bills will have a watermark of the person whose portrait is around the bill. They’ll also have a protection thread embedded while in the paper that glows below ultraviolet light-weight. All dollar notes have very small red and blue fibers embedded in them https://fakedocumentsonlinefree84959.theisblog.com/34130125/not-known-facts-about-us-currency-copyright-guide