This 1990 Collect-A-Books Baseball Box Set #2 #3 Lot Superstars is a vintage sports trading card set featuring Major League Baseball players such as Don Mattingly, Jose Canseco, Nolan Ryan, and Roberto Clemente. The set includes 24 original cards manufactured by Collector's Marketing Group in the United States. This opened box set is complete and does not feature any autographed cards, making it a valuable addition to any baseball card collection for fans of the MLB and vintage sports memorabilia.