1950s rhodium plated faux-aquamarine necklace with hook clasp. Marked "Napier." A goldtone version of this necklace is shown on pg 240 of Melinda L. Lewis & Henry Swen's book "The Napier Co.: Defining 20th Century American Costume Jewelry." Measures: 6 inches long by 6.13 inches wide. Excellent condition.