Abstract: A display system and method for its use including a narrow rectangular cabinet arranged for mounting onto an end of a retail store display that includes, across a top section, a number of spaced apart identical horizontal shelves of a depth to support a single item, such as a pack of trading cards, thereon. The shelves each support a number of items at spaced intervals, behind a transparent rail that extends at a right angle upwardly from the shelf face. The transparent rails include sequential number or letter identifiers fixed therealong, and may include bar codes next to which identifiers, for identifying the particular item fitted on the shelf centered immediately behind which identifier. The cabinet top section is covered by a transparent door that can be locked thereover, and the cabinet lower section can include a peg board with hanger arrangement.