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psa

PSA Grading Examples & Scale—Differences Between Grades Like PSA 9 & 10

As a leader in authenticating sports cards and other items, PSA has the daunting task of striving for perfection every single day. I mean, when the specific grade of an item can drastically impact its value, the process of grading becomes all the more important. One great tool is PSA’s PSA Photograde™ Online where you

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Who Owns PSA? A Brief History.

PSA is owned by Collectors Universe, an American company based in southern California. Collectors Universe was formed in 1986 with Professional Coin Grading Service (PCGS). When was PSA Founded? PSA was founded in 1991, beating other popular grading company Beckett Grading Services (BGS) to the market, which was founded in 1999, according to Sports Collectors

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