1968-1970 Adirondack model 280X Donn Clendenon professional model bat is uncracked and exhibits evidence of excellent use. Several ball marks are visible on the barrel along with a moderate amount of pine tar. The model number (280X) is stamped into the knob along with a hand written "22" in black marker. Amazingly, this bat has been signed by 18 Hall of Famers including: Sandy Koufax, Willie Stargell, Early Wynn, Bob Feller, Enos Slaughter, Rollie Fingers, Harmon Killebrew, Bob Lemon, Lou Boudreau, Brooks Robinson, Luke Appling, Robin Roberts, Gaylord Perry, Reggie Jackson, Bob Gibson, Billy Herman, Lou Brock, and Steve Carlton; all in thick black marker. Comes with PSA/DNA GU 9 LOA.