MSPE Character Folder is a 1984 role-playing game supplement published by Flying Buffalo for Mercenaries, Spies and Private Eyes.
MSPE Character Folder are a pack of 20 character sheets that fold up to form a wallet, and can be used to record notes and clues.
[1] W.G.
Armintrout reviewed MSPE Character Folder in Space Gamer No.
[1] Armintrout commented that "I'm not usually one to go gaga about character sheets, but these are good – they give you somewhere to put things and fold down to a convenient size.