When cocked, the hook rest on the bottom edge of {HEAD ~ a small hole} drilled in {TAIL ~ a lower corner} of a hooded type mailbox door 
drilled in
When cocked , the hook rest on the bottom edge of { HEAD ~ a small hole } drilled in { TAIL ~ a lower corner } of a hooded type mailbox door
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH