OAKLAND A's DAROLD KNOWLES AUTOGRAPHED RAWLINGS MLB BASEBALL SIGNED WITH THE INSCRIPTION ALL 7 IN 73 WS. In 1973 DAROLD became the only Pitcher in MLB History to pitch in all 7 games of a World Series. He won World Series Championships with the A's in 1972, 1973 and 1974.
The ball is Authenticated by JSA. It has a JSA numbered sticker and matching COA and is registered online.