VTG Clip-ons Grape Clusters w Screw Backs 016

These vintage earrings are so cute. They look like little grape clusters and dangle nicely. They are clip-on but can be fixed with an earring kit to make them pierced. Quite old but unsure of era. No writing or stamps. Measures approx. 1 3/4" x 3/4" wide with a screw clip. Weighs about .3 oz. Needs a good cleaning. We are not jewelry experts - we've simply been buying pieces we love for over 35 years. Photos are the description.