Class Reunion is an insert set in 2004 Playoff Honors. This 20-card set features players who will forever linked with another because of draft class (cards 11-20) or Hall of Fame class (cards 1-10). Each base card is serial numbered to the specific year. The base set is paralleled by a Materials set with pieces of game used memorabilia. Each of the Materials parallels is serial numbered to 25-250 copies each.
Gallery[]
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Checklist[]
| Number | Player 1 | Player 2 | Base PR | Material 1 | Material 2 | Mat PR |
| 1 | Eddie Murray | Gary Carter | 2003 | Jersey | Jersey | 100 |
| 2 | Carlton Fisk | Tony Perez | 2000 | Jersey | Bat | 250 |
| 3 | Nolan Ryan | George Brett | 1999 | Jersey | Jersey | 100 |
| 4 | Rod Carew | Fergie Jenkins | 1991 | Jersey | Pants | 250 |
| 5 | Joe Morgan | Jim Palmer | 1990 | Jersey | Jersey | 100 |
| 6 | Carl Yastrzemski | Johnny Bench | 1989 | Jersey | Jersey | 250 |
| 7 | Harmon Killebrew | Lou Aparicio | 1984 | Jersey | Jersey | 250 |
| 8 | Brooks Robinson | Juan Marichal | 1983 | Jersey | Jersey | 100 |
| 9 | Al Kaline | Duke Snider | 1980 | Jersey | Jersey | 25 |
| 10 | Roberto Clemente | Warren Spahn | 1973 | Jersey | Jersey | 100 |
| 11 | Mark Prior | Mark Teixeira | 2001 | Jersey | Jersey | 250 |
| 12 | Josh Beckett | Barry Zito | 1999 | Jersey | Jersey | 250 |
| 13 | Mark Mulder | Adam Dunn | 1998 | Jersey | Jersey | 250 |
| 14 | Vernon Wells | Lance Berkman | 1997 | Jersey | Jersey | 250 |
| 15 | Eric Chavez | Nick Johnson | 1996 | Jersey | Jersey | 250 |
| 16 | Kerry Wood | Roy Halladay | 1995 | Jersey | Jersey | 250 |
| 17 | Todd Helton | Carlos Beltran | 1995 | Jersey | Jersey | 250 |
| 18 | Derek Jeter | Jason Giambi | 1992 | Jersey | Jersey | 250 |
| 19 | Manny Ramirez | Shawn Green | 1991 | Jersey | Jersey | 50 |
| 20 | Chipper Jones | Mike Mussina | 1990 | Jersey | Jersey | 250 |
Template:2004 Playoff Honors