{TAIL ~ The blade} 204 may have an exterior surface 204B and {HEAD ~ a blade edge} 204C 
{ TAIL ~ The blade } 204 may have an exterior surface 204B and { HEAD ~ a blade edge } 204C
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH