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The half grade came into vogue a few years ago, where “eye appeal” is the real key according to PSA President Joe Orlando. This 8.5 1955 Topps Sandy Koufax sold for $10,684 in the recent Mile High auction.
Grading Cards

Card Grading: Inside the Process with PSA, SGC

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Autograph News

SGC Now Certifying Autographs Under Name SGC Authentic