1.- Most of the miniatures are attached to the base of the display cases by a triangular head screw. 2.- To unscrew it, the ideal is to use a miniature screwdriver tool with that type of head. 3.- Phillips screwdrivers should not be used as they can damage the head of the screw and render it useless. 4.- If you do not have the specific tool, use a flat screwdriver adjusting it to one of the sides.