A quirk of the original Bowman series was the color of the TV set. The first 64 cards featured a lighter-colored television and the Heritage set did the same thing.
While the 1955 set has 320 cards, the Heritage set included 351, including 51 short-prints. There are fifteen Cubs in the set. Four of the cards have the lighter TV set and just two of the cards (Garciaparra and Sosa) were short-printed.