Mark McGwire is one of the pre-eminent players of the modern baseball era, and his memorabilia is at the forefront of the hobby. Signed balls, prints, and jerseys are all hot right now, but such a rare piece of authentic game-used equipment from McGwire's short minor league stint is a valuable thing, indeed! Although his Modesto A's baseball card has dropped in value as more and more appeared on the market, a mitt like this Rawlings Pro-6X-SC, used by McGwire after he signed with the Oakland Athletics is worth its weight in gold. It is the only one known, and it's a sure bet that none will ever surface! McGwire used the glove while playing for the minor league Modesto A's. Glove shows great use and is well broken-in. "MAC" is written in black marker on the thumb and again on the heel of the glove (faded). A classic piece of game-used equipment from the man who re-wrote the record books. Authentic seal from Reggie Jackson.com. LOA.