Art Deco Clip on Earrings

Very nice vintage art deco clip on earrings in decent condition. There is a little discoloration from age, but you could probably clean them up. These are very striking in appearance, not your typical boring earrings from the era. No markings. They look to me like they are made of sterling, but I will not say that outright because I am not sure. Assume they are not made from silver.