The mark consists of the letters "NWS" in black extending diagonally downward within a circle having a blue perimeter and filled with magnified particles of sand having white and blusish-gray coloring.
001, 012, 033, 050
Design plus words, letters, and/or numbers
The color(s) black, white, blue and bluish-grays is/are claimed as a feature of the mark.
Coal, Circles as carriers or as single line borders