Vintage Monet Clip On Earrings - Condition Issues - Painted?

Vintage Monet Clip On Earrings - Condition Issues - Painted? These earrings measure about 5/8". Looks like these have been painted at some point as the silver tone are is dark and looks not original. Center part tarnished. Tarnish and discoloration elsewhere. Marks and signs of wear. 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 clips are in working order. 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.