a container assembly for storage and display of articles formed of a plurality of parts that can be stored and shipped in substantially flat form and that can be assembled to a three - dimensional form thereby both storing the articles that are for sale and representing a display of one of the articles . a cylindrical body comprises two or more body panels preferably of resilient plastic biasing the panels toward a normally flat condition . cooperative elongated interlocking channel members for locking the body panels together at adjacent side edges to form the cylinder . the channels are formed to interfit readily when the body panel margins adjacent the edges are substantially coplanar . the pressure biasing the body panels toward a flat position locks the interlocking channels together when the panels are curved to form a cylinder . flanges on the channel members bear against the body panel margins adjacent the edges to stiffen those panel margins to maintain a smooth continuation of the cylindrical shape at and through the lines of interlock . partition panels and a floor assembly are positioned within the cylindrical body . a sheet is held by interlockable channel members in a cylindrical form and has a flat lid snapped onto it to form a replica of a bottle cap . the cap replica fits on top of neck portions of the partition panels .