Appraised by relevant departments, counterfeit banknotes have the following characteristics: First, there are six English prefixes of counterfeit banknotes, starting with AB, AC, AD, AJ, AK and AL respectively; Second, the second flap on the right side of the front lace is solid; Third, the number of crown characters is different and discontinuous, and the font spacing of numbers is different, and the size is slightly different, and the same number is sometimes obviously different; Fourth, the clarity of the words "USA 100" in the whole security line is close to that of real banknotes, but it is not clear; Fifth, the ticket face is brand-new, it feels very thick, and there will be a little light green ink on your hand after you order it.