Joe DiMaggio Signed Baseball with HOF 55 Inscription. Hall of Fame. JSAJoe DiMaggio Signed Baseball Inscribed, "HOF 55" A unique Joe DiMaggio Signed Baseball with the coveted Hall of Fame 1955 inscription. The Official American League Baseball is bright white and the sweet spot features a clean and bold signature by the Yankee Clipper. Joe DiMaggio, like his counterparts Mickey Mantle and Ted Williams, rarely added inscriptions to autographs. During this time in the hobby, inscriptions were not valued by collectors to