Vintage CORO Beautifully Detailed Rhinestone Earrings

Gorgeous pair of vintage (possibly antique) Coro gold-tone and faceted purple rhinestone screw-back earrings. Quality workmanship and no missing stones. The screw-backs are in working order.work. These have been in my special antique/vintage collection for many years and it's time for me to let them go. A couple of rhinestones on one earring appear to have some pale discoloration. Otherwise, in excellent condition for their age! Some history about Coro: Coro jewelry, Cohn & Rosenberger, was founded in New York by Emanuel Cohn and Carl Rosenberger in 1901/1902 and incorporated in 1913. A factory was established in Providence, Rhode Island in 1911. With offices or plants in New York and Providence, at times they had a presence in Chicago, Los Angeles, San Francisco, Miami, Toronto, England and Mexico as well. Great Britain mechanical patents have been found in the name of Corocraft from 1961 until 1969, which documents actual production in England (courtesy Mary Walden-Till). Cohn died in 1910, but the name remained Cohn & Rosenberger. The corporate name “Coro” was adopted in 1943. Please let me know if you have questions. Smoke-free home. Thanks!