I love the design on these vintage copper earrings.  Early to mid 20th century screw-back earrings are decorated with a swiring spring of copper on a curved copper backing.  These earrings are a match to Renoir earrings, however, since this pair is not signed, they remain in the unsigned catagory.  But the quality in the design is evident and hand work is noted by the soldering on the back of the earrings.  A great find, these earrings are 1" long.