Vintage Lucite Plastic Earrings Similar to Bakelite Black Fan Shape, Screw-Backs

Great pair of vintage earrings are made of a lucite or plastic material that could be bakelite, but I am not willing to attempt any of the many tests that can be found online to determine if they are bakelite, for fear of damaging them. These earrings are lightweight, fan-shaped beauties, in a deep black color with a high gloss finish, and are attached to silver tone metal screw-backs. Measurements are 1 inch tall by 1 inch wide, and the condition is very good. Unmarked.