This is the April 1966 Sports Illustrated magazine featuring The Big Three on the cover - Jack Nicklaus, Arnold Palmer, and Gary Player. This has always been among the most coveted magazines related to golf - with its unusual green jacket cover featuring the greatest players of the era. This entire original magazine is autographed by all three cover subjects - Nicklaus, Palmer, and Player.
Full Letter of Authenticity from James Spence Authentication (JSA)