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Ends May 31: Classic Auctions offers 1912-13 Imperial Tobacco hockey set with cards graded by PSA among more 300 card lots
The Highest Prices Realized of All-Time.
Join the growing team at PSA and turn your passion for collecting into a career.
The Foundation of All Great Collections.
Professional Sports Authenticator (PSA) is the largest and most trusted third-party trading card authentication and grading company in the world. Since its inception in 1991, PSA has certified over 40 million cards and collectibles with a cumulative declared value of over a billion dollars.
PSA is a division of Collectors Universe, which has offices in California, New Jersey, Paris, Hong Kong, Shanghai and Tokyo.
As the only third-party grading service to offer a guarantee on its services, PSA has emerged as the clear leader in authentication and grading for trading cards and other collectibles.