The 300-card first series was released in February, 2005. The series was issued in five card packs with an SRP of $6. There were 12 packs to a box and 16 boxes to a case. A 150-card second series was released in July, 2005, also in five-card packs. Although there are no short prints in this set, cards numbered 281-300 and 426-450 feature retired greats. - 2006 Beckett Almanac of Baseball Cards and Collectibles, 11th Edition.