This invention relates to unique object identification and, in particular, to {TAIL ~ methods} and {HEAD ~ systems} for identifying and interacting with objects 
This invention relates to unique object identification and , in particular , to { TAIL ~ methods } and { HEAD ~ systems } for identifying and interacting with objects
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH