Alternate color or configuration shownDri-Mark® Smart Money® PenSimply make a small mark on U.S. currency. Chemically sensitive ink works instantly. An amber mark passes the test, while a dark brown or black mark fails, meaning the bill is likely counterfeit. Works on all new design U.S. currency (bills series 1959 and later).Manufacturer: DRI-MARK PRODUCTS Add to compare listEmail a friendSimply make a small mark on U.S. currency.Chemically sensitive ink works instantly.Amber mark passes the test, while a dark brown or black mark means the bill is suspect.Works on all new design U.S. currency (1959 and later).OverviewContact UsSimply make a small mark on U.S. currency.Chemically sensitive ink works instantly.Amber mark passes the test, while a dark brown or black mark means the bill is suspect.Works on all new design U.S. currency (1959 and later).Your name * Your email * Enquiry * SubmitThis product is sold out