The cards in this 726-card set measure 2 1/2" by 3 1/2". As in previous years, this set was issued in many different ways: some of them include 14-card wax packs, 30-card supermarket packs which came 48 to a case and had an SRP of 20 cents and 39-card rack packs. The 1978 Topps set experienced an increase in number of cards from the previous five regular issue sets of 660. Card numbers 1 through 7 feature Record Breakers (RB) of the 1977 season. Other subsets within this set include League Leaders (201-208), Post-season cards (411-413), and Rookie Prospects (701-711). The key Rookie Cards in this set are the multi-player Rookie Card of Paul Molitor and Alan Trammell, Jack Morris, Eddie Murray, Lance Parrish, and Lou Whitaker. Many of the Molitor/Trammell cards are found with black printing smudges. The manager cards in the set feature a "then and now" format on the card front showing the manager as he looked during his playing days. While no scarcities exist, 66 of the cards are more abundant in supply, as they were "double printed." These 66 double-printed cards are noted in the checklist by DP. Team cards again feature a checklist of that team's players in the set on the back. Cards numbered 23 or lower, that feature Astros, Rangers, Tigers, or Yankees and do not follow the numbering checklisted below, are not necessarily error cards. They are undoubtedly Burger King cards, separate sets with their own pricing and mass distribution. The Bump Wills card has been seen with either no black mark or a major black mark on the front of the card. We will continue to investigate this card and see whether or not it should be considered a variation.