One situation with dollars is usually that because many of the denominations are printed on exactly the same measurement notes, counterfeiters bleach small price notes and reprint them as high value bills. So that they have a $1 bill, bleach it, then reprint it being a $one hundred bill. Specifically, https://live-king-crab-vancouver39483.frewwebs.com/35232921/what-does-us-currency-copyright-guide-mean