Any ball autographed by Tom Seaver, Willie Mays and Yogi Berra is worth its weight in sports history. Now add the refrain of "Ya Gotta Believe" and you have a ball worth its weight in Shea Stadium earmuffs. Thirty (30) members of the '73 NL champion team that took the A's to the 7th game of the World Series before finally going down inked this ONL (Feeney) ball including the abovementioned trio, McGraw, Staub, Grote, Millan, Milner, Harrelson, Koosman, Jones, Matlack, Kranepool and more. Signatures 8/10, ball is EX+ with some light toning.