Detecting Counterfeit Currency
{"Image DocumentName": "Detecting Counterfeit Currency", "Image ImageDescription": "Counterfeit detecting pens are inexpensive special pens/markers containing the element iodine. When they come in contact with a counterfeit bill, the paper marked with the pen will change color to a bluish-black. This is because of starch, found in regular printer paper. Real money does not contain starch but has a different fiber. When the pen is marked on real money, it\u2019ll leave a pale yellow-brown line that fades quickly. Pen manufacturers claim the pen to have a 98% accuracy, but some counterfeiters will bleach  1 bills to have the correct paper to print off larger bills. There is currently a global movement to change to polymer money, a type of plastic money because it\u2019s much more difficult to counterfeit and less expensive to make.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}