A New York Yankees Stadium Blue #21 Seat Back hand signed by Brian Bollinger, Mariano Duncan, Tim Raines, Jimmy Key, David Weathers, Wade Boggs, Charlie Hayes, Darryl Strawberry, Ramiro Mandoza, Luis Sojo, Jim Leyritz. The signature is in excellent condion. The seat back is in used condition. AUTHENTICATION: The item is accompanied by Steiner Sports Hologram & Official MLB Hologram.