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Coin Grading CompaniesGrading Service Companies are divided into three tiers. Tier One: (Most Reputable) PCGS (Professional Coin Grading Service) NGC (Numismatic guaranty Corporation of America) Tier Two: (Reputable) ICG (Independent Coin Grading Company) ANACS (American Numismatic Association Certification Service) Tier Three: (Other Companies) ACG (Accugrade, Inc.) IGS (International Grading Service) NTC (NumisTrust Corporation) PCI (PCI, Inc.) SEGS (Sovereign Entities Grading Service) SGS (Star Grading Service) TGS (TruGrade Service) |
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