Also shown are the exterior surface 23 of the top portion 7 and the exterior surface 24 of {HEAD ~ the bottom portion} of {TAIL ~ the housing} 
of
Also shown are the exterior surface 23 of the top portion 7 and the exterior surface 24 of { HEAD ~ the bottom portion } of { TAIL ~ the housing }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL