copyright pens are a terrific start line because they are easy to use. Nevertheless, this type of detector will not work on bleached bills. As a standard way of counterfeiting, bleached bills Have got a decrease denomination's printing bleached off, then are re-printed with a better denomination. They catch most, https://100-dollar-hong-kong90987.mdkblog.com/44857044/5-simple-statements-about-how-copyright-pens-detect-copyright-explained