Football coach. Rockne not only made Notre Dame the country’s leading football center but also revolutionized football theory. He stressed offense, developed the precision backfield or Notre Dame shift, perfected line play, and developed many stars, including the most famous backfield of all time, the “Four Horsemen of Notre Dame.” He died in a plane crash in 1931. Signed book: The Four Winners. NY: Devin-Adair Company, 1925. Hardcover, 5.25 x 7.5, 251 pages. Signed on the first free end page in fountain pen, “Sincerely, Knute Rockne.” In fine condition, with pencil notation and a touch of mild soiling to signed page, not affecting signature and spine and binding a bit week. COA Steve Grad/PSA/DNA and R&R COA.