This 300-card standard size set was released in December, 2003. The set was issued in four-card packs with a $3 SRP which came 24 packs to a box and 10 boxes to a case. This set was designed in the style of what the 1956 Bowman set would have been if that set had been issued. Cards numbered 161-170 feature players who debuted in the 2003 season and each of those players have a double image. Cards numbered 171-180 feature retired greats and those cards were issed in three styles: Regular design, Double Image and Knothole Design, Cards number 180-300 are all Rookie Cards and all those cards are issued in the knothole design. - 2006 Beckett Almanac of Baseball Cards and Collectibles, 11th Edition.