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  2. Counterfeit banknote detection pen - Wikipedia

    en.wikipedia.org/wiki/Counterfeit_banknote...

    A counterfeit banknote detection pen, used to detect fake banknotes. A counterfeit banknote detection pen is a pen used to apply an iodine-based ink to banknotes in an attempt to determine their authenticity. The ink reacts with starch in wood-based paper to create a black or blue mark but the paper in a real bill contains no starch, so the pen ...

  3. 4 ways to detect counterfeit money - AOL

    www.aol.com/2016-06-22-4-ways-to-detect...

    Making counterfeit money has never been easier. Here are some things to look out for when you receive cash to verify that it is genuine. 4 ways to detect counterfeit money

  4. Currency detector - Wikipedia

    en.wikipedia.org/wiki/Currency_detector

    A currency detector or currency validator is a device that determines whether notes or coins are genuine or counterfeit.These devices are used in a wide range of automated machines, such as retail kiosks, supermarket self checkout machines, arcade gaming machines, payphones, launderette washing machines, car park ticket machines, automatic fare collection machines, public transport ticket ...

  5. UV marker - Wikipedia

    en.wikipedia.org/wiki/UV_Marker

    UV marker with UV led lamp. An ultraviolet (UV) marker is a pen whose marks are fluorescent but transparent; the marks can be seen only under an ultraviolet light.They are commonly used in security situations to identify belongings or to prevent the reproduction of unauthorized banknotes.

  6. The 8 Best Ways to Spot Counterfeit Money - AOL

    www.aol.com/news/2013-05-03-how-to-spot...

    The latest redesign of the U.S. $100 bill is set to enter circulation in October, and along with its sleeker look, the bill has new security features designed to thwart counterfeiters.

  7. Counterfeit Money 101 - AOL

    www.aol.com/counterfeit-money-101-140001215.html

    According to the U.S. Secret Service, $75 million in counterfeit bills were seized by the Peruvian National Police between 2009 and 2017, yet a counterfeiter reported that most counterfeit ...

  8. Optically variable ink - Wikipedia

    en.wikipedia.org/wiki/Optically_Variable_Ink

    The United States fifty-dollar bill, for example, uses color shifting ink for the numeral 50 so that it displays copper at one angle and bright green in another. [ 1 ] OVI is particularly useful as an anti-counterfeiting measure as it is not widely available, and it is used on security printing .

  9. How to spot dangerous counterfeit products - AOL

    www.aol.com/article/2015/06/23/how-to-spot...

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