Abstract: Unitary blank includes a shroud blank and a tray blank connected by webs therebetween. The unitary blank is folded along a first line of demarcation so that the web overlaps the shroud blank, then along a parallel second line of demarcation so that the tray overlaps the web and the shroud. End portions are then folded toward a center line running perpendicular to the lines of demarcation to form a unitary preform for a two part shipping and display container. According to one embodiment the tray blank is provided with handles and the unitary blank is folded so that the tray blank is outside the shroud blank.

Abstract: Unitary preform includes a knocked-down flat shroud having sidewalls received inside a knocked-down flat tray and adhered thereto for handling by a conventional case packer having a single magazine. The shroud is releasable when the case is packed to provide a display tray for product packed therein. Handles in the tray provide means for releasing adhesive. Alternatively, the tray may be received inside the shroud. Methods of manufacture include steps of folding and adhering separately formed flat parts.