The Base Set of 1990 Donruss Baseball is made up of 716 cards. Cards 1-27 are Diamond Kings, cards 28-47 are Rated Rookies, and cards 692-715 are All-Star cards.
There are two distinct variations of the 1990 Donruss set. The cards were were not all printed at the same location, nor were they all even printed in the United States.
- Inc. / Inc - There is a variation where the period behind the Inc. in the copyright statement is missing.
- Background Splatter - The black and white "splatter" effect is different between cards that come from the factory set vs. cards that were pulled from packs.
There are 33 error cards and 1 uncorrected error card.
- Juan Gonzalez - Reverse Negative ERR is a somewhat rare rookie card, relative to other 1990 card sets and print runs.
- Larry Walker, Sammy Sosa, and Bernie Williams all have rookie cards in the set as well.