The Perez-Steele Celebration set was issued in 1989 to commemorate the 50th anniversary of the Baseball Hall of Fame, and this is a fantastic set with 41 out of the 44 players that could have possibly signed doing the honors (missing only Lefty Gomez, Judy Johnson and Ralph Terry). It comes with the original green slipcase, box and booklet as they were assembled by one collector with most of the signatures having been obtained in person. The cards are NRMT while the signatures grade 8/10 or better. The Roy Campanella card comes with JSA LOA and Jocko Conlan has a copy of a note sent back when he signed a group of cards.