These are typically called safety threads. Any time you hold up US dollars, to The sunshine, the safety threads must appear to be a part of the note, as opposed to currently being printed on it. For included stability, the denominations of $5 and higher are more colorful as opposed https://meherb788ftj6.ageeksblog.com/32461658/the-single-best-strategy-to-use-for-us-currency-copyright-guide