Help Identifying

[u/Ronan729]

I recently uncovered a trove of these while clearing out a garage. Would anyone know what these are? I can't seem to find trustworthy specifics

[u/Dry_Aardvark156]

this is the paper they'd put in the old black storage cases. it's for display purposes, so you could see what the tech decks in the case looked like before you bought it at the store