Even some nations around the world that still use paper may perhaps use blends that react differently with the iodine, so constantly test your pen on a real Monthly bill very first. No, copyright Invoice detector pens differ noticeably in high quality and performance. Some pens use greater-excellent iodine answers https://100-dollars-hong-kong55432.ka-blogs.com/92108941/the-definitive-guide-to-100-dollars-hong-kong