The product is an original 8x10 photo of Mark McGwire from the St. Louis Cardinals, autographed by the player himself. The autograph has been authenticated by James Spence Authentication (JSA), ensuring its authenticity. This collectible piece is a unique and valuable item for baseball fans and autograph enthusiasts. Made in the United States, this authenticated autographed photo is a must-have for any sports memorabilia collector looking to add a piece of MLB history to their collection.