Abstract: This specification discloses a folder suitable, for example, as a bank passbook for the retention or protection of sheets of paper or other like material comprising a pair of spaced post portions of snap fasteners near a fold line in the folder and attached to and projecting from one side of the folder and adapted to pass through holes in the sheets of paper, a pair of spaced cap portions of the snap fasteners adapted to cooperate with said post portions and removable to permit removal or insertion of sheets of paper from said folder, and a sheet of resilient, flexible plastic or like material affixed to and projecting from said folder at or about the fold line with one hole in register with each post portion and adapted to retain the sheets of paper loosely in position on the post portions when the cap portions are removed from the post portions.