PSA unveils new photo-matching service for professional model bats

Auction: James' School Jersey Replaces Obama's As World's Costliest

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PSA & Collectors + UserTesting

1961 Match Corp Twins Universal Jim Lemon PSA 3 Pop 5

PSA launches game-used bat photo-matching service / Blowout Buzz

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PSA launches game-used bat photo-matching service / Blowout Buzz

PSA unveils new photo-matching service for professional model bats - Sports Collectors Digest

OUTRIGHT BIG TEN CHAMPS: No. 20 Terps Secure Outright Big Ten Title With 7-4 Triumph Over Penn State - University of Maryland Athletics

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PSA Professional Model Bat Grading and Authentication Services

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WEEKLY BRIEFING – News and events in and around San Diego