Study the serial quantities. There must be two serial quantities Positioned within the face with the bill on possibly side with the portrait. Look at the Monthly bill diligently and Make certain that the serial numbers match.[8] X Research supply UV light units are more sophisticated than typical UV lights, https://howcounterfeitpensdetectf78776.bleepblogs.com/39171514/5-simple-techniques-for-100-dollar-hong-kong