A version of this story originally appeared on MiLB.com in 2010. We present it here once more as Minor League Baseball ...

If all this is too much to remember, begin grading by uploading your baseball card on Professional Sports Authenticator (PSA), Beckett Grading Services (BGS), or Sportscard Guaranty Corporation (SGC).

Unlike submission centers that still send collectors' cards on two transatlantic journeys, Beckett will grade, label, and slab cards on-site in the European Union. Black Labels have literally ...

To create this list of the most expensive baseball cards, we used data from credible sources, including Professional Sports Authenticator (PSA), Beckett Grading Services (BGS), Heritage Auctions ...