Featured is a Carl Yastrzemski signed custom white pro style baseball jersey in which he added the " TC 67" inscription. This jersey was hand signed by Carl Yastrzemski 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.. SPECIFICATIONS Autographed By: Carl Yastrzemski Team: Boston Red Sox Sport: Baseball Authentication: Beckett Grading Services