THE MARK CONSISTS OF A TRIANGULAR LIGHT PRISM WITH A BEAM OF WHITE LIGHT ENTERING ONE SIDE OF THE PRISM AND A COLOR SPECTRUM EMANATING FROM ANOTHER SIDE OF THE PRISM, THE SPECTRUM COMPRISING COLOR BANDS OF RED, ORANGE, YELLOW, GREEN, BLUE, AND VIOLET.
THE DRAWING IS LINED FOR THE COLORS RED, ORANGE, YELLOW, GREEN, BLUE, AND VIOLET.