US Patent 7350649 Paper sales rack with adjustable modular shelving

A modular display rack that permits sheet paper products to be stored and displayed at a variety of heights, angles and spacings. The display rack includes a frame having sidewalls from which first and second parallel, spaced apart rows of pegs protrude inwardly. A plurality of detachable trays have rearward portions that detachably mount to the pegs of the rearward row in pivotable engagement therewith, and middle portions that rest atop the pegs of the forward row. The rows of pegs may be formed as elongate strips having base portions that are mounted to the sidewalls of the frame.