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100 dollars banknot currency in UV light protection.Dollars in UV light.Checking money close up Stock Photo - Alamy
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![united states - Is the $5 USD bill from Series 2006 supposed to glow brightly under ultraviolet? - Personal Finance & Money Stack Exchange united states - Is the $5 USD bill from Series 2006 supposed to glow brightly under ultraviolet? - Personal Finance & Money Stack Exchange](https://i.stack.imgur.com/6SpJr.jpg)
united states - Is the $5 USD bill from Series 2006 supposed to glow brightly under ultraviolet? - Personal Finance & Money Stack Exchange
![Brian Wagner on Twitter: "Paper currency, such as these older Canadian paper bills, often contain fluorescent markings, only visible under UV ( black) light as shown at right, as anti-counterfeiting measures. #Science #FluorescenceFriday # Brian Wagner on Twitter: "Paper currency, such as these older Canadian paper bills, often contain fluorescent markings, only visible under UV ( black) light as shown at right, as anti-counterfeiting measures. #Science #FluorescenceFriday #](https://pbs.twimg.com/media/D6xMAdmW0AABdob.jpg)