- Each championship team set is registered on the PSA/DNA Set Registry so teams can be collected and cataloged individually.
- All cards are numbered to 25 or less each two having at least (2) complete sets available.
- There are no 1-of-1 cards so all players will be found multiple times within the specific series, so players on multiple championship teams are included multiple times within each series such as Mickey Cochrane, Carl Yastrzemski and Steve Carlton.
- All cards will be authenticated, numerically graded and encapsulated by PSA/DNA surrounded by a unique Historic Autographs artwork design!