IN THE DRAWING, THE GENERALLY VERTIFAL LINING ON THE RIGHT SIDE OF THE OUTER SURFACE OF THE COIL IS FOR SHADING PURPOSES. THE LINING ON THE LEFT SIDEOF THE INNER SURFACE IS FOR SHADING PURPOSES. THE DARKER, MOREHORIZONTAL LINING ON THE FRONT, OUTER SURFACE OF THE COIL IS POTATO SKIN LEFT ON THE CUT POTATO AS A RESULT OF THE CUTTING MEANS USED.