Featured is a Rob Thomson signed Philadelphia Phillies black MLB baseball in which he added the "Grease The Poles " inscription. This baseball was hand signed by Rob Thomson and authenticated by JSA authentication services. Included with the baseball is a JSA hologram and certificate of authentication. This item would make a great addition to any sports memorabilia collection!. SPECIFICATIONS Autographed By: Rob Thomson Team: Philadelphia Phillies Sport: Baseball Authentication: James Spence Authentication (JSA)