This is a sheet of water-slide decals, dry transfers, or self-adhesive stickers for use in detailing anime or science-fiction kits.
From the manufacturer:
This decal set supplies extensive "aztec" panel decals which represent the detailed surface deocariton of the U.S.S. Reliant model used during the filming of "Star Trek II: The Wrath of Khan." The decals have been specially engineered to fit the 1:537-scale model kit by AMT. They are compatible with setting solution, though it is not required. The decals cover nearly the entire model, though paint is required in some areas to completely match the filming miniature. This set of decals consists of over 100 decals with placement instructions, and includes alternate name and registry markings to create the U.S.S. Saratoga.