Abstract: A panel connection assembly for providing a tight fit between a pair of panels for a pleasing seamless effect. A pair of elongate first connector members are connected to the panel edges respectively. An elongate second connector member has a narrow central portion and a pair of enlarged portions between which the central portion extends. Each of the first connector members has an opening including a throat opening into an enlarged inner cavity. The openings of the first connector members together have a complementary shape to that of the second connector member for receiving the central portion in both of the throats and the enlarged portions in the cavities respectively for connecting the panels. Fabric covers the outer sides of each panel.

Abstract: A header frame for a display system which is easily and quickly erected without tools and which is collapsible to a compact shape for packing, storage, and transport. The header frame is disassembled to only four portions for packing, storage, and transport, i.e., two frame portion assemblies and two elongate connector assemblies. Each of the frame portion assemblies comprises a plurality of members joined to be U-shaped when the header frame is erected and hingedly connected to be collapsible compactly so that the members are parallel to and lie alongside each other. Thumbscrews are provided for detachably attaching the connector assemblies to the frame portion assemblies so that tools are not required for erection or disassembly of the header frame.