Impressive signed baseball first day cover collection features (?) examples and features 500 Home Run Club (12 sigs), 1984 Olympic baseball team (22 sigs), 1988 Olympic baseball team (20 sigs), Mantle/Mays/Snider, Mantle/Williams/Yaz/Robinson, Mantle, Maris, DiMaggio (2), Williams (2), Koufax, Aaron, Mays, Griffey Jr., Puckett (2), Seaver (7), Dickey, T. Jackson, Ryan (9), Yastrzemski (3), Jackson (2), Drysdale, Reese, Henderson (3), McGwire (4), Dandridge, Mattingly (4), Terry, Ripken Jr & Sr., Griffey Jr & Sr., Stargell (4), Berra, J. Johnson, Leonard (2), Rose (8), Ryan & Henderson, Bench, McCovey, Snider (2), Musial (2), Spahn, Alston, Gomez, Banks, Schmidt, Brett, Valenzuela, Ripken Jr., Keller, Ford, B. Martin and more.  Condition overall near mint and signatures are crisp, rating 8/10 overall.