Vintage Lindenwold Earrings

These vintage earrings are by Lindenwold Fine Jewelry. They have a mark, but I’m unable to identify what it is. They have tiny diamonds, tested by a diamond tester. I am unsure of the other stone - topaz, maybe? They measure 1/2” tall with clip backs. I tested for gold, but I think they are gold-filled. They didn’t test for 14k, but did for 10, which could make them gold-filled. No flaws, they may have never been worn! RE1