Official American League (Cronin) baseball signed in either blue or black ink by twenty-one members of the 1971 New York Yankees, including Munson (twice; one grades 7/10, the other 5/10), Kekich (sweet spot), Peterson (sweet spot), Howser (coach), Lyttle, Swoboda, Alou, Hambright, Michael, Hansen, Clarke, Stottlemyre, Cater, Bloomberg, Bahnsen, McDaniel, Aker, and Hardin. (The additional signature of manager Ralph Houk on the ball label has been deemed a clubhouse example by PSA.) Signatures average 6/10. The ball displays light toning and is in Excellent condition. Full LOA from PSA.