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