Housing 2 includes a central key way 4 disposed along axis 3 for receiving a key 5 in {HEAD ~ the conventional manner} to permit {TAIL ~ rotation} of cylinder 1 
Housing 2 includes a central key way 4 disposed along axis 3 for receiving a key 5 in { HEAD ~ the conventional manner } to permit { TAIL ~ rotation } of cylinder 1
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 REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH