Bewertungsexperte
RECOMMENDED
Erlaubte Werte:
Beckett Collectors Club Grading (BCCG)
Beckett Grading Services (BGS)
Beckett Vintage Grading (BVG)
Card Grading Australia (CGA)
Certified Guaranty Company (CGC)
Gem Mint Authentication (GMA)
Gold Standard Grading (GSG)
Hybrid Grading Approach (HGA)
International Sports Authentication (ISA)
K Sportscard Authentication (KSA)
MNT Grading (MNT)
Platin Grading Service (PGS)
Professional Sports Authenticator (PSA)
Rare Edition (Rare)
Revolution Card Grading (RCG)
Sportscard Guaranty Corporation (SGC)
Technical Authentication & Grading (TAG)