Mike Piazza hand signed NY Mets Mitchell & Ness authentic jersey. Hand signed in bold silver on the back and inscribed "United We Stand". INSANE jersey with rare inscription. Real Mitchell & Ness authentic with 9-11-01 date stitched onto the sleeve and the american flag stitched on the back of the jersey. 2001 Cooperstown Collection authentic Mike Piazza jersey. Hall of fame catcher! Adult size large (44).