Thank you for checking out an Authentic Memorabilia Company listing! We are pleased to offer the following item and will happily answer any questions that you may have about it! Item: Mark McGwire game worn and signed 1988 Oakland Athletics jersey. Condition: Jersey shows light to moderate wear overall. Authentication: Dave Miedema LOA (LOA will be received within a few weeks as the jersey has only recently been authenticated – details of the LOA can be sent to anyone interested, just please message for further information). Regarding authenticity, the majority of our items come authenticated by some of the industry’s authorities including Steiner Sports, Upper Deck, Tri-Star, Professional Sports Authenticator (PSA), James Spence Authentication (JSA), Beckett Authentication Services (BAS), Sportscard Guaranty (SGC) and Roger Epperson Authentication Limited (REAL). Feel free to message us regarding wanting additional photos, information or any other concerns you may have. The item “Mark McGwire signed game worn used 1988 Oakland Athletics jersey! Miedema LOA” is in sale since Friday, March 15, 2019. This item is in the category “Sports Mem, Cards & Fan Shop\Game Used Memorabilia\Baseball-MLB\Jerseys”. The seller is “authenticmemorabiliaco” and is located in Scarborough, Ontario. This item can be shipped worldwide.