Look at the serial numbers. There needs to be two serial numbers Situated over the facial area on the Monthly bill on both side in the portrait. Consider the bill cautiously and Make certain that the serial figures match.[8] X Study supply Keep in mind constantly to do your research https://how-to-tell-copyright-b01098.dsiblogger.com/71848211/the-basic-principles-of-how-copyright-pens-detect-copyright