The mark consists of an arching line that becomes wider toward the right side. Beneath the arching line appears a line that begins near the lower left side of the arching line and continues downward and in a circular direction toward the lower right of the arching line. The line then turns toward the left and then downward in a circular direction until it ends beneath and to the left of where the line turned toward the left. On the upper right side of the outer circular line appears a figure formed by two intersecting arcs, the ends of which meet and end on the left side but which extend beyond the meeting point on the right side.