Vintage Clip On Earrings - Mother of Pearl? with Gold Tone Sand Dollar 0.75"

Vintage Clip On Earrings - Mother of Pearl? with Gold Tone Sand Dollar 0.75" These earrings measure about 0.75" long. Looks like the outer part is mother of pearl but could be shell, I am not sure. Colors show differently in different lights and at different angles. Design on one slightly off center. Marks and tarnish/discoloration to clips and some tarnish, discolorations and staining to rear. One clip slightly looser than the other but still holds on to the thin smooth earrings stand (as shown - not included) without issue. Preowned vintage earrings, sold as shown. 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. I ship quickly and provide tracking information but delivery times are an estimate. Item is located in the United States. Country of manufacture cannot determined.