1960s goldtone and silvertone shell with seaweed brooch with security clasp. Marked "Napier." An identical brooch is shown on pg 858  of Melinda L. Lewis & Henry Swen's book "The Napier Co.: Defining 20th Century American Costume Jewelry." Measures: 1.75 inches long by 3 inches wide. Condition: Very good; minor wear to back.