That is, the when light source is extinguished, {TAIL ~ only the first or exterior design element} 130 is displayed to a viewer of {HEAD ~ the cover exterior} 
That is , the when light source is extinguished , { TAIL ~ only the first or exterior design element } 130 is displayed to a viewer of { HEAD ~ the cover exterior }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD