Vintage Screw Back Earrings Dark Orange Unusual 0.75"

Vintage Screw Back Earrings Dark Orange Unusual 0.75" These earrings measure about 0.75". I am not sure of the material but shape differs between the two. Some gold tone wear to screws and where the screws meet the back of the earrings. Some marks to rear. Preowned vintage earrings, sold as shown - I am unsure of material type(s) because of this. Pictures show different angles for you to review - while I attempt to note any defects, some tarnish/signs of wear may be visible that are not otherwise stated. Earrings are tested and photographed on a thin/smooth earring stand (not included) to show that the screw backs are in working order.