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Founded in 1987, NGC is the world's leading and largest third-party coin grading service. Every coin NGC grades is backed by our comprehensive guarantee of grade and authenticity - the strongest guarantee in the industry.

Numismatic Guaranty Corporation (NGC)
PO Box 4776

Sarasota, Florida 34230
United States

view phone(800) 642-2646

view fax(941) 360-2553

Founded in 2005, PMG is the world's largest third-party paper money grading service. Every note PMG grades is backed by the comprehensive guarantee of grade and authenticity - the strongest guarantee in the industry.

Paper Money Guaranty, LLC (PMG)
PO Box 4755

Sarasota, Florida 34230
United States

view phone(877) 764-5570

view fax(941) 309-1002

Numismatic Conservation Services

in Services

PO Box 4776

Sarasota, Florida 34230
United States

view phone(941) 360-3990