The mark consists of a symmetrical, vertical, winged serpent having a head, a body, and two wings, wherein the wings each are formed from three feather-like sections of graduated size extending outward nearly horizontally from the body, with the longest section being furthest from the head and the shortest section being nearest the head, and wherein the body is relatively oval shaped on both sides where the wing sections extend therefrom, and wherein the head is serpent-shaped and comprises two oval-shaped eyes each extending upward and outward toward the wing sections, and also comprising a forked tongue protruding downward from the mouth area.