Researching old jewelry, history, style, decade trends, metals, etc.
Signed Coro on back of clip-on.
(These later Coro lines, from 1950s to the 1970s, with the Coro mark on them, were sold in general department stores. Better specialty stores such Neiman Marcus, Saks Fifth Avenue, Lord & Taylor, Dillard's, Bloomingdale's, Gum's, and other fine stores, would carry Vendome, Corocraft, Coro Sterling Craft but not plain Coro. These lines were pricier to appeal to the specialty stores.)