Daily Archives: July 18, 2019

You have all seen cashiers at stores test twenty dollar bills with a felt tip pen. With the advances that computers, printers, and scanners have made over the years it is possible for counterfeiters to scan and print twenty dollar bills on regular paper. Regular paper is made of wood cellulose bound together with starch based glue, whereas American money is printed on cotton or linen fabric bound together under high heat. The felt tip pen the cashiers use has an iodine solution… Continue reading →