The present invention, in accordance with one embodiment, provides a system and method for creating, managing and tracking Requests-For-Proposals in an on-line environment. At least a part of the transparent portion of the mounting frame is opposed to at least a part of the periphery of the display panel, thereby forming a clear portion allowing the vision to the rear side of the display panel. The bin has upstream and downstream walls located above a conveyor. A cover having a shape generally corresponding to the base member at least partially encloses the interior portion of the base member.