Abstract: A container with an improved closure system and other improved features made of a single-faced paperboard blank formed of a corrugated paperboard layer and a substantially flat paperboard layer. The blank has scored lines or cuts which define a bottom portion, a cover, a cover support and four side walls. The boundaries of the side walls are defined by a plurality of substantially parallel scores and cuts that meet at a plurality of points so as to form side walls which have generally triangular ends. The improved closure system comprises at least one locking tab integrally formed in the cover and which has a plurality of flutes and at least one locking receptacle integrally formed in the bottom portion and which has an edge. Each corresponding receptacle and tab positionally coincide when the container is assembled so that a flute of the locking tab engages the flat paperboard layer by the edge of the receptacle to facilitate a closure.

Abstract: A container made of a single-faced paperboard blank formed a corrugated paperboard layer and a substantially flat paperboard layer has scored lines or cuts which define a bottom portion, a cover, a cover support and four side walls. The boundaries of the side walls are defined by a plurality of substantially parallel score and slits that meet at a plurality of points so as to form side walls which have generally triangular ends. The container has four external vents for moisture to pass from the interior of the container to the outside, and three internal vents to allow moisture to pass from the interior of the container to the space between the corrugated and flat paperboard layers.