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Claim 1

AN INTEGRAL RECTANGULAR BLANK OF CORRUGATED FIBERBOARD FOR FOLDING INTO A CONTAINER HAVING A SELF-LOCKING TOP AND BOTTOM COMPRISING IN COMBINATION A TOP PORTION, A BODY PORTION, AND A BOTTOM PORTION, SAID BODY PORTION INCLUDING TWO END WALL PANELS AND TWO SIDE WALL PANELS, ADJACENT WALL PANELS BEING JOINED BY WALL ANGLE FOLD LINES, EACH OF SAID WALL PANELS HAVING AN UPPER EDGE, A LOWER EDGE, AND SIDE EDGES ADJACENT RESPECTIVE SAID WALL ANGLE FOLD LINES, SAID TOP PORTION INCLUDING FOUR TOP PANELS HAVING LOWER EDGES CONNECTED BY FOLD LINES TO RESPECTIVE SAID WALL PANEL UPPER EDGES, SAID BOTTOM PORTION INCLUDING FOUR BOTTOM PANELS HAVING UPPER EDGES CONNECTED BY FOLD LINES TO RESPECTIVE SAID WALL PANEL LOWER EDGES, SAID TOP PANELS AND BOTTOM PANELS BEING ADAPTED TO BE FOLDED TO FORM A SELF-LOCKING TOP AND BOTTOM RESPECTIVELY, SAID TWO END WALL PANELS OF SAID BODY PORTION BEING TRAPEZOIDAL IN SHAPE WITH SAID SIDE EDGES OF EACH SAID END WALL PANEL BEING PARALLEL, ONE SAID SIDE EDGE OF EACH SAID END WALL PANEL BEING OF A DIMENSIONAL LENGTH EQUAL TO THE DIMENSIONAL LENGTH OF THE OTHER SAID SIDE EDGE OF SAID END WALL PANEL AND TWICE THE THICKNESS DIMENSION OF SAID CORRUGATED FIBERBOARD, SAID TWO SIDE WALL PANELS OF SAID BODY PORTION BEING RECTANGULAR IN SHAPE WITH EACH OF SAID SIDE EDGES THEREOF BEING OF A DIMENSIONAL LENGTH INTERMEDIATE THE DIMENSIONAL LENGTHS OF THE SIDE EDGES OF SAID END WALL PANELS SUCH THAT WHEN SAID TOP AND BOTTOM PORTIONS OF SAID CONTAINER ARE LOCKED IN CLOSED POSITION THE UPPER EXPOSED SURFACES OF SAID TOP PANELS CLOSELY ADJACENT THE CORNERS OF THE CLOSED TOP ARE IN THE SAME HORIZONTAL PLANE AND THE LOWER EXPOSED SURFACES OF SAID BOTTOM PANELS CLOSELY ADJACENT THE CORNERS OF THE CLOSED BOTTOM ARE IN THE SAME HORIZONTAL PLANE.