Vintage Solid Copper Etched Southwestern Moon Niello Dangle

WM Wheeler Co Stamped Southwestern copper teardrop shaped earrings by the WM Wheeler Company. Etched and oxidized copper dangle earrings. The teardrop bottom dangles from a ball post. New clutch type earbacks have been added. Not heavy. Length is approximately 1-3/8" total and 5/8" wide. Signed WM Co. (1980s)