{HEAD ~ The reflective surfaces} 72 and 74 are mounted to {TAIL ~ a carriage member} 148 
are mounted to
{ HEAD ~ The reflective surfaces } 72 and 74 are mounted to { TAIL ~ a carriage member } 148
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH