Vintage Red Enamel Siam Silver Screwback Dancer Earrings

Very good condition Siam silver red enamel dancer earrings. They appear to be marked on both “sterling’ but this is hard to read. The enamel is on both front and back to the earrings and is still very good. There is light areas of wear to the enamel and there the earrings appear more orange then dark red. The earrings measure approximately 1 & 7/8ths of an inch tall.