A pair of relatively rotatable face to face metal swivel plates centrally secured together adjacent {TAIL ~ the common center axis} and arranged along their respective margins for {HEAD ~ respective securement} to an article and the base 
A pair of relatively rotatable face to face metal swivel plates centrally secured together adjacent { TAIL ~ the common center axis } and arranged along their respective margins for { HEAD ~ respective securement } to an article and the base
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH