Examples of the type

Picture 1 of the example of 20 Dollars (Federal Reserve Note; small portrait; with security thread) Picture 1 of the example of 20 Dollars (Federal Reserve Note; small portrait; with security thread)
© iseyaz (CC BY-NC-SA)
1990 – (en) Series 1990 - B (New York)Signatures: CVV, NFB(en) Series 1990 - B (New York)
A clear frame error on one side