It is extremely simple, requiring no holes be drilled, and requiring only one small downwardly slanted cut be made in {HEAD ~ the rearward flange} of {TAIL ~ the mailbox door} 
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It is extremely simple , requiring no holes be drilled , and requiring only one small downwardly slanted cut be made in { HEAD ~ the rearward flange } of { TAIL ~ the mailbox door }
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 REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL