The mark consists of a series of three peaks in a line drawing with a middle-high peak on the left, the highest peak in the center and the lowest peak on the right, each peak comprised of jagged lines and the three peaks, their sides and their base nearly enclosing three flames; the three flames are represented by one shaded-in nearly half-circle figure with a wavy side edge which fits closely with two S-shaped shaded-in thick figures placed side-by-side and to right of the first flame (the half-circle figure).