these are vintage gold plated earrings. these are very old and have a nice gold plating. very cool design. from what I have been able to find these appear to have been made in Columbia. Vintage Yellow Gold Plated Clip-on Earrings, Gold Antique Finish Drop Earrings, Gold Drop Earrings With Antique Finish, Antique Brass Drop Plug Earrings, Antique Brass Plug Drop Earrings, Vintage Gold-plated Clip-on Earrings, Antique Brass Pierced Earrings, Vintage Gold Plated Nickel Free Earrings, Nickel-free Vintage Gold-plated Earrings