Circles pendant Sterling Silver 925 HAN Thailand gold concentric

Small concentric circles pendant It's made of gold plated Sterling Silver. Signed on the back "HAN 925 Thailand". I believe it might be vintage, by the Helen Andrews Inc company. There are no gems in this pendant. The silver tone metal rings have raised dots that catch the light to give the illusion of diamonds. it's in good preowned conditon with some minor wear and patina, nothing major Ships fast! STARA868VF5Y4E