Here's a great lot to start or fill in that Hall of Famers collection, with 10 signed baseballs including: 1) Willie Mays PSA 9.5. 2) Stan Musial PSA 9. 3) Johnny Bench PSA 9.5, 4) Cal Ripken Jr. PSA 9.5, 5) Reggie Jackson PSA 9.5. 6) Frank Robinson PSA 9. 7) Pete Rose PSA 9. 8) Mariano Rivera (PSA). 9) Bob Gibson "HOF 81" (Steiner). 10) Nolan Ryan (Ryan COA). Rivera, Gibson, and Ryan signatures rate 9/10, all autographs are on crisp, white Official Major League balls and present beautifully.