Mark McGwire Signed Louisville Slugger Bat (Beckett) St. Louis Cardinals Slugger

This autographed baseball bat has been personally hand-signed by Mark McGwire of the St. Louis Cardinals.

This autograph is certified by Beckett Authentication Services (BAS) Witness Certification. That means that a Beckett representative was present when this item was signed. It comes with the numbered authentication hologram with a QR code that verifies the authentication on the Beckett website.