Upon returning the second housing to its folded inoperative position, means are provided to cause {HEAD ~ the mirror} to pivot to {TAIL ~ its folded, inoperative position} 
to pivot to
Upon returning the second housing to its folded inoperative position , means are provided to cause { HEAD ~ the mirror } to pivot to { TAIL ~ its folded , inoperative position }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL