Dri-Mark Counterfeit Money Detector Pen for Use with U.S. Currency

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Feature

Sold as 1 EA.
Simply 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).

Description

Dri Mark's original Counterfeit Detector Pen is still the only product of its kind made in the USA. Mark US paper money with a small stroke. A yellow marker passed the test, and a dark mark indicates that the bill may be counterfeit.