Ken Griffey Jr. Signed Mariners Majestic CoolBase Baseball Jersey 630 HR JSA
Featured is a Ken Griffey Jr. signed Seattle Mariners Majestic CoolBase baseball jersey in which he added the "630 HR" inscription. This jersey was hand signed by Ken Griffey Jr. and has been authenticated by JSA authentication services. Included with the jersey is a JSA hologram and certificate of authentication. This jersey would make a great addition to any sports memorabilia collection.
