Very unusual older pin, a dome of copper luster style looks like glass with copper colors in a pattern and one concave black area that is off center, very unique, all original. And surrounded by pale blue iridescent rhinestones, like an aurora borealis in blue. It measures 1" across and is in very good condition. Silver tone metal backing, no maker marks.
Unusual Pin Copper Luster Style Glass Dome Iridescent Rhinestones