The mark consists of a three-dimensional configuration of the goods having a generally rectangular shape, with a reduced-width section at the top third of the goods, a pair of score lines running vertically along the vertical edges of the goods, four raised rounded triangular wedges in the upper third of the goods of decreasing length from left to right, a raised rounded L-shape running from right to left across the width of the goods along the bases of the rounded triangular wedges and then downwardly to the center of the base of the goods, the L-shaped section generally increasing in width from the top to the bottom, a generally raised U-shape in the right portion of the central third of the goods with the base on the left and the open end on the right and a number of diagonal lines extending downwardly from left to right across the top surface of the U-shape, and three rounded triangular wedges in the bottom third of the goods, with one on the left of the raised L-shape, and the remaining two between the raised L-shape and the raised U-shape.