Abstract: An upper clamp part (24) includes a downwardly directed upper clamp jaw (28). A lower clamp part (26) includes an upwardly directed lower clamp jaw (30). The upper and lower clamp parts (24, 26) are adapted to be connected together by a screw fastener (32), with a member positioned between the upper and lower clamp jaws. The screw fastener (32) connects the upper and lower clamp parts (24, 26) together and moves their clamp jaws (28, 30) into clamping engagement with the member (20, 22). The clamp parts (24, 26) include outboard portions that maybe sections of a T-bar (14, 52). When the clamp parts (24, 26) are connected together, and are clamped onto the member, the T-bar sections are in axial alignment.

Abstract: Identical side members (32) may be connected together by mortise (46) and tenon (52) structure to provide an elongated display holder (10, 22), preferably having a substantially triangular cross sectional shape. Corner structures (54, 56, 58) may be provided which include slots (70, 72) that confront each other and receive edge portions of display members (74). The side members (32) may include outwardly openings T-slots (76) which receive divider strips (82). The divider strips include oppositely directed slots (92, 94) which confront the corner slots (70, 72). This provides the display area on one side of the display holder with two parallel display regions for receiving substantially half width display members (96, 98). The display holder may be mounted horizontally (FIG. 1) or vertically (FIGS. 2 and 11). The side members (32′) may be laterally curved, even to the extent of providing the display holder with a substantially cylindrical shape (FIG. 15).