Abstract: A shelf system includes a panel including a first opening; a plug in the first opening, the plug including a wing that extends from a rear of the plug and is angled with respect to a side of the plug, and a second opening; and a shelf including a tongue, the tongue inside the second opening such that the shelf is retained with respect to the panel by the plug.

Abstract: A display system has removable fixtures for supporting eyeglasses, eyeglass frames and similar manufactured articles in a display configuration on a substantially vertical display panel. A fixture has a forward end adapted to hold the eyeglasses, eyeglass frames or other article in an attractive display position and a rear end adapted to secure the fixture releasably to an aperture in the display panel. The rear end of the fixture has a face plate that contacts the front surface of the display panel around the periphery of the aperture, a pair of opposed side lugs and a flanged top clip dimensioned to fit in the aperture and engage the periphery of the aperture and the rear surface of the display panel. The fixture is attached by inserting the flanged top clip and pressing rearwardly until the side lugs engage the display panel. The side lugs can have inclined bottom edges that bear against the bottom edge of the aperture, forcing the top clip against the opposite edge.