Abstract: A case having two relatively pivotable, open ended case sections that abut at the open ends when the case is in an open position to form a walled, open-positioned to form a walled, open-topped enclosure, the case having a closed position in which the floors in the two sections are disposed parallel and the walls of the case sections extend about three sides of the region between the floors of the case sections. The case further includes a closure panel having a laminar central portion which is moved into recesses in the floors of the case sections when the case is opened so as to avoid forming a blockage between the floors of the two case sections in the open position and which is moved to a position to close the fourth side of the case in the closed position.