Container for foodstuff or other material

Claim 1

A container comprising a container portion having an opening closed by a lid portion, said container portion coMprising a flat base portion having upstanding peripheral side walls having outwardly directed peripheral flanges at the upper edges thereof, said lid portion being secured to said peripheral flanges and extending to the edges of the flanges, one of said side walls of two opposed side walls being of greater height than the other so that the plane of the lid and peripheral flanges is inclined to the plane of the base, said two opposed side walls being longer than the side walls interconnecting said two opposed side walls, one of said two opposed side walls being concave in plan view and the other of said two side walls being convex in plan view with respect to the interior of the container, whereby a series of such containers can be laterally adjacently disposed with said flanges overlapping and with said convex side wall of one container tightly fitting against the concave side wall of an adjacent container.