Paper Money Guaranty
Paper Money Guarantee (PMG) has created a new online Note Certification Verification Tool. The tool, which can be found at PMGnotes.com, is free for users and will verify the certification and authenticity of US notes that PMG has graded.
Currency can be verified by PMG certification number or by serial number. For notes currently in a PMG holder only the certification number is needed to confirm the notes authenticity [...]