Vladimir Guerrero Sr. and Vladimir Guerrero Jr. dual autographed Official Major League Baseball signed in blue ink with the added inscriptions HOF2018 for Sr. and Plakata for Jr. These signatures have been authenticated by JSA James Spence authentication Certification Number: SS22302. There is no cert card, just the sticker which you can go to the JSA website to confirm the authentication. This signature has also been authenticated by USA Sports Marketing Certification Number: U57724. The Ball will come with a new cube for display. Buy with confidence we have been selling autographs since 1992.  Baseball