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