The mark consists of Two triangles superimposed with apices pointing in opposite directions. Similar to the Star of David with a horizontal oval in the center. The base of the triangle with the south pointing apex anteriorly overlaps the triangle with the north pointing apex. The sides of the south pointing triangle underlap the sides of the triangle with the north pointing apex, but overlap the base of the north pointing triangle to form the apex of the south pointing triangle.There is a central oval with its long axis in the horizontal plane..