Game-worn jerseys, autographs, game-used equipment, balls, and display pieces — the physical connection to the game. Every authenticated piece links straight to its COA verification, and Cardboard Assets never takes a cut.
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Authentication matters more here than anywhere.
Forged autographs are the hobby's oldest scam. Prefer pieces with PSA/DNA, JSA, or Beckett authentication — every authenticated listing links directly to the authenticator's verification page — and read the safety guide before any high-value deal.