Official 1978 World Series baseball signed in blue ink by twenty-eight members of the 1978 World Champion New York Yankees, including Munson, Lemon (Mgr., sweet spot), Gossage, Hunter, Guidry, Nettles, Tidrow, Doyle, Howard (coach), Johnson, and Clay. Signatures average 7/10 in grade. Excellent to Mint condition. Full LOA from PSA.