The cards in this 407-card set measure 2 1/2" by 3 1/2". In 1957, Topps returned to the vertical obverse, adopted what we now call the standard card size, and used a large, uncluttered color photo for the first time since 1952. Cards in the series 265 to 352 and the unnumbered checklist cards are scarcer than other cards in the set. However within this scarce series (265-352) there are 22 cards which were printed in double the quantity of the other cards in the series; these 22 double prints are indicated by DP in the checklist below. The first star combination cards, cards 400 and 407, are quite popular with collectors. They feature the big stars of the previous season's World Series teams, the Dodgers (Furillo, Hodges, Campanella, and Snider) and Yankees (Berra and Mantle). The complete set price below does not include the unnumbered checklist cards. Confirmed packaging includes one-cent penny packs and six-card nickel packs. Cello packs are definately known to exist and some collectors remember buying rack packs of 57's as well. The key Rookie Cards in this set are Jim Bunning, Rocky Colavito, Don Drysdale, Whitey Herzog, Tony Kubek, Bill Mazeroski, Bobby Richardson, Brooks Robinson, and Frank Robinson.