The mark consists of A sphere subdivided into quadrants by symmetrical fine white curved lines; each quadrant filled by photorealistic depictions of the following subjects, starting at the top and proceeding clockwise: 1) a front view of a black, blue and white tugboat under way against a background of blue sea, white sea foam, and blue sky, 2) a top view of a black, blue, and white tugboat directing jets of water onto a red tanker vessel emitting plumes of grey smoke against a background of green water; 3) an elevated view of several black, blue, and white tugboats applying their bows to the hull of a tanker vessel with a green deck and red sides with black stripe, against a background of green water; 4) interior view of a white-uniformed individual meeting several yellow-uniformed firefighters at a hatch.