Glance over the bill to see if you'll find some very clear microprinting. Some counterfeiters also have microprinting, but it's blurry and may very well be in numerous locations. Inspect the microprinted words around the border and the sting with the portrait. Use a magnifying glass to find the tiny https://socialtechnet.com/story2253559/a-secret-weapon-for-undetectable-counterfeit-bills-for-sale