Vintage Artisan Made Copper Finish Over Brass Crystal Statement Clip-on Earrings

Vintage artisan made copper finish over brass (I THINK) Geometric Art Deco style clip-on earrings with large crystal accent. These are statement earrings measuring 2 3/4" long and about 1 1/4" wide. These are lightweight so I'm not sure of the material. To me it looks like a copper finish was applied to a brass base. Pretty leaf design with a large faceted bezel set crystal accent. Pre-owned. Please ask if you have questions. Unique!