MGC Sterling mag

Hi all -

I found this on eBay just now:
https://www.ebay.com/itm/384262101988?mkevt=1&mkpid=0&emsid=e11021.m43.l1120&mkcid=7&ch=osgood&euid=608d6f565106444287237cbf0af64b05&bu=43186299082&ut=RU&exe=98458&ext=232175&logid=nqt%3DAAAAAAAAAAAAAAAAAAACAAAAAAAAAAAAAAAAAAAAAAAAIAAAAAAAAAAAACAAAAAAAAAAEAAAAAgAAAAAAAAAAAAAgAAAAAAAAAAAAAAIAAAAAAAAAAAAAAAAAAAAAAAAgA**%26nqc%3DAAAAAAAAAAAAAAAAAAACAAAAAAAAAAAAAAAAAAAAAAAAIAAAAAAAAAAAACAAAAAAAAAAEAAAAAgAAAAAAAAAAAAAgAAAAAAAAAAAAAAIAAAAAAAAAAAAAAAAAAAAAAAAgA**%26mdbreftime%3D1625655901142%26es%3D0%26ec%3D1&osub=-1%7E1&crd=20210707041309&segname=11021&sojTags=ch%3Dch%2Cbu%3Dbu%2Cut%3Dut%2Cnqt%3Dnqt%2Cnqc%3Dnqc%2Cmdbreftime%3Dmdbreftime%2Ces%3Des%2Cec%3Dec%2Cexe%3Dexe%2Cext%3Dext%2Cexe%3Dexe%2Cext%3Dext%2Cosub%3Dosub%2Ccrd%3Dcrd%2Csegname%3Dsegname%2Cchnl%3Dmkcid

It's not mine.  I understand items like this are pretty rare, so I thought I'd post it up here in case any of the members here would be interested.