Minor league set , key card is pre rookie of HOFer Ryne Sandberg, graded NM/MT by PSA. Remaining cards are in comparable condition. Also includes eventual MLB players Ozzie Virgil, Mark Davis, Bob Dernier, Dickie Noles, and Warren Brusstar. These minor league sets were made for local distribution - some sets even have information for local business sponsors printed on them. As a result they have much lower print runs than the MLB sets from this period, and can be difficult to find outside of their original area of distribution.