In accordance with {HEAD ~ the teachings} of {TAIL ~ the present invention}, adjustable ring structure is provided wherein a ring shank is hinged to define first and second arcuate elements having an aperture therebetween 
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In accordance with { HEAD ~ the teachings } of { TAIL ~ the present invention } , adjustable ring structure is provided wherein a ring shank is hinged to define first and second arcuate elements having an aperture therebetween
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH