Second configuration signal device assembly 20 differs from the first configuration only by hook 60 being formed on {HEAD ~ the front end} of {TAIL ~ rod} 58 instead of a straight front end rod 48 
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Second configuration signal device assembly 20 differs from the first configuration only by hook 60 being formed on { HEAD ~ the front end } of { TAIL ~ rod } 58 instead of a straight front end rod 48
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 OTH OTH OTH OTH OTH OTH OTH OTH OTH