Tamper proof security mail and bank collection bag

A tamper proof security mail and collection bag comprising front and rear wall panels, inwardly foldable gussets forming end walls, flat strip means secured to the mouth end of said front wall and having spaced flat reinforcing plate means associated therewith to enable hinging of said strip means in the mid section thereof, flat strip means secured to the mouth end of said rear wall, flat foldable flap means formed on said rear strip means having reinforcing plate means associated therewith, spaced apertured pins mounted on said flap means and projecting angularly therefrom, wing members foldably connected to said flap means and extending laterally from opposing ends thereof, reinforcing plate means associated with said members, spaced apertures in said front and rear strip means, gussets and wing members whereby when said mouth is closed, said flap means is single folded over said front strip means to project said pins through the apertures in both of said strip means, and said wing members are folded inwardly relative to said strip means with said pins projecting through the apertures therein, and locking means associated with at least one of said apertured pins for flatly closing and securing the mouth end of the bag against tampering and unauthorized opening, and whereby when said mouth is open said reinforced front strip means will hinge midway and be movable outwardly to form an enlarged generally V-shaped opening.