Get your autographs authenticated at Detroit Sports Spectacular! Stop by the Beckett booth for on-site autograph authentication, $10 Show Signer Authentication Special, and drop-off submissions for card grading, ticket grading, and autograph authentication.

Get your autographs authenticated at Detroit Sports Spectacular!

Stop by the Beckett booth for on-site autograph authentication, $10 Show Signer Authentication Special, and drop-off submissions for card grading, ticket grading, and autograph authentication.

— Beckett Collectibles (@beckettcollect) May 26, 2026