As seen in FIG 16, the lateral end 4 a of the left side wrapping portion 2 is disposed in close proximity to {HEAD ~ a fold line} 35 of {TAIL ~ the V fold} 5 
of
As seen in FIG 16 , the lateral end 4 a of the left side wrapping portion 2 is disposed in close proximity to { HEAD ~ a fold line } 35 of { TAIL ~ the V fold } 5
OTH OTH OTH OTH OTH OTH 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 OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH