Drimark Counterfeit Detection Dry Mark Counterfeit Detector Pen 3 Pack 3513B
- The original and best counterfeit detector pen, patented by dry mark in 1991..
- Superior chemical test for counterfeit US paper money..
- A simple mark on paper currency: dark mark means counterfeit, light mark passes test.
- The only counterfeit detector pen still made in the USA. Others are Manufactured in China and Mexico..