The present invention relates to the field of postal handling, processing, and delivery and, more particularly, to detecting {TAIL ~ contents} of letters, flats, packages, or {HEAD ~ other mail} 
The present invention relates to the field of postal handling , processing , and delivery and , more particularly , to detecting { TAIL ~ contents } of letters , flats , packages , or { HEAD ~ other mail }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD