1991 Score is an 893 card set released in two series of 442 and 451 cards, respectively. It is best known for it's massive size (the largest baseball card set released to date) and 11 subsets: First Draft Picks (671-682), Master Blasters (689-693), K-Men (684-688), Rifleman (694-698), NL All-Stars (661-670), No-Hitters (699-707), Franchise (849-874), Award Winners (875-881) and Dream Team (882-893).
An American Flag card, #737, was issued to honor the American soldiers involved in Desert Storm.
Notable Rookie Cards in the set include Chipper Jones