Chunky Circle on Circle Chain Necklace created by Joanne Cooper in 1970s

Chunky Circle on Circle Chain Necklace created by Joanne Cooper in 1970s. It is a one of a kind. It may be an artist proof for a later design. It is a white metal. It is 17" long (when flat) and 6.5" round when clasped.. Excellent condition. Costume jewelry. Vintage. Joanne Cooper created original designed as well as collaborated with Ciner in the 1970’s-80’s. Her jewelry was seen in top fashion magazines including Vogue, Harper’s Bazaar and WWD, as well as on models including Margaux Hemingway. Her designs were organic and free-form. Her jewelry was sold in Sak’s, Neiman-Marcus, Henri Bendel.