This is the 1988 Score Baseball Factory Set which contains 660 Cards. This Was the 1st Set Made By Score! Loaded with Stars and Hall of Famers Including Cal Ripken, Nolan Ryan, Barry Bonds, Don Mattingly, Mark Mcgwire, George Brett, Ozzie Smith, Mike Schmidt, Ryne Sandberg, Jose Canseco, Roger Clemens and More. Rookie Cards Include Tom Glavine, Matt Williams, Ellis Burks, Greg Jefferies, Billy Ripken and Others! This Set is in the Original Factory Box but is not sealed. Score did not factory seal their factory sets until the following year.