Abstract: An expandable framework for attachment of display panels and the like. The linkage is lockable in one or more configurations intermediate the collapsed and fully expanded configurations so that the same framework may be used for more than one type of display, such as floor display and table-top display. A shipping case for containing the framework, when collapsed, is convertible into a podium by wrapping a decorative panel about the case and fastening the panel thereto to be flush with an upper platform on the case.

Abstract: A stackable case to tower conversion for stacking shipping cases that are typically used for storing and transporting "pop-up" display structures for use at trade shows. The case to tower conversion provides a linking module for stacking cases one on top of the other. The linking module includes a plurality of walls, a plurality of projecting members, and a support member and is capable of engaging with the shipping cases to securely attach one case to another. The resulting tower can be used to form a part of the display and to support display panels or graphics.