Tiny Vintage Butterfly Earrings

Tiny Vintage Retro Antique Yellow Butterfly Stud Earrings - vintage, age unknown. - materials and metal used: unknown. - in good vintage condition though the butterflies have rubbed off some and there’s a significant amount of tarnishing on one of the backs. Please reference all photos. They are quite old and beat up but still cute as a button! - actual color can vary slightly from photos. - make me an offer!