PMG Grading
Paper Money Guaranty. With an unparalleled commitment to accuracy, consistency, and integrity, PMG is the world’s largest independent paper money grading service. With more than 1.
5 million certified banknotes, the PMG certificate is recognized around the world. The banknote is authenticated by independent experts, the quality graded on a scale from 1 to 70, and the banknote then encased in a special plastic holder.