One pack from the inaugural 26-card set by Upper Deck, featuring one player from each team. One pack was distributed with each Grand Slam meal purchased at Denny's restaurants.
Each pack included a scratcher for a chance to win prizes:
Grand Prize - Trip for 4 to the 1991 World Series
First Prizes - Team Jacket
Second Prizes - Team cap
Third Prizes - Any Denny's desert
Fourth Prizes - 16 oz Coke
Bonus - Grand Slam meal
I pulled #14 Andre Dawson of the Cubs.
This is the backer card, it's a blank back.