Large collection of factory sets from the five mainstream card manufacturers from the 1980s and 90s (Donruss Fleer Score Topps and Upper Deck). Each set is factory built in its original packaging with most still sealed. It is our opinion that all the sets are unopened though some of the older sets are sealed only with tape or stickers that have lost their adhesion over the years. Included in the collection are the following: Donruss Factory Sets (3): 1) 1989 complete set: cards still sealed in original cellophane packs 2) 1990 complete set: cards still sealed in original cellophane packs 3) 1991 complete "hobby dealer" set: cards still sealed in original cellophane packs Fleer Factory Sets (3): 1) 1988 complete set: factory seal intact 2) 1989 complete set: factory seal weak but intact 3) 1990 complete set: factory seal intact Score Factory Sets (3): 1) 1988 complete set: no seal cards appear unsearched 2) 1989 complete set: no seal box appears unopened and cards appear unsearched 3) 1990 complete set: no seal box appears tightly closed and unopened Sixteen complete factory sets from the beginning of the modern hobby boom each factory sealed or unsearched. Topps Factory Sets (4): 1) 1988 complete set: factory sealed in cellophane 2) 1989 complete set: two of three adhesive seals have lost their adhesion; box appears unopened nonetheless. 3) 1990 complete set: two of three adhesive seals have lost their adhesion; box appears unopened nonetheless. 4) 1991 Micro complete set: factory sealed in cellophane Upper Deck Factory Sets (3): 1) 1989