A file comprising at least one cover and at least one, preferably at least two spaced lugs whose ends are held at or near the spine of the file. Such lug or lugs extend between the file rear cover and a tab, which extends also from the spine only for part of the breadth of the file. These lugs are arranged perpendicular in relation to the file cover and are adapted to have their free ends inserted through holes provided in the tab after papers to be accommodated in the file and provided with holes have been placed on the lugs.
A filing folder for perforated papers having at least one cover and flexible binding tongues secured to said cover and having a securing part upon which objects such as covers, pockets and the like are hookable with one edge portion of said objects are flush with the free end of said securing part so that said cover tongue and objects are locked relative to each other by a channel bar slid over the spine of the folder.
A expandable loose leaf binder having a rigid front cover and a rigid back cover. A flexible flap being affixed to the back cover and having two rows of apertures extending from an edge of the back cover. The sheets are retained by post members extending through the front and back covers and a selected pair of apertures in the flap.
