Shade-modifying ink are available over the obverse facet from the bill in two various locations- on the freedom bell and around the numeral "100" Found on the lessen appropriate corner. This guide is really a instruction source for tellers who ought to learn the way to authenticate Federal Reserve notes. https://remingtondksye.acidblog.net/65476994/the-smart-trick-of-copyright-trade-dollars-for-sale-that-nobody-is-discussing