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Line 10: Some counterfeit detector pens can reportedly work for thousands of counterfeit money tests.{{cite web \|url=http://www.itestcash.com/collections/counterfeit-detector-pens/products/us-counterfeit-detector-pen \|title= counterfeit detector pens ~~\|publisher= iTestCash~~ ~~\|date= September 14, 2007~~ }}

Counterfeit banknote detection pen: Difference between revisions