Memorabilia · Sep 8, 2026 · 6 min
Memorabilia 101: Authenticating Jerseys and Autographs
From game-worn jerseys to signed baseballs, know what makes memorabilia legit.
Look for third-party authentication from trusted companies like PSA/DNA, JSA or Beckett, with a matching sticker and certificate.
Game-worn items should be photo-matched to specific games. Wear patterns, repairs and tags all help confirm it.
Team and league holograms, like MLB's authentication program, are among the strongest proof available.
Keep certificates with the item, and never buy expensive pieces that come with only a seller's own letter of authenticity.