Artisan made silver & metal tree earrings

Purchased at artisan market in Asheville, NC. Apologies, I don’t know the creator. The backing is a distressed, darker metal, with the front disc made of silver (shines up easily with silver polishing cloth). I cannot verify or authenticate the materials. These are being sold as is and are fully described and depicted. Please look carefully at the photos. The back pieces are not silver; the variation in color is intentional and this part will not lighten with polishing. Thanks for looking!