Goldtone knot clip back earrings. Marked "Napier." Measure: 2 1/8 inches long by 1 inch wide. Condition: Very good; minor wear if any. The matching pieces and a different version of these earrings are shown on pg 287 of Melinda L. Lewis & Henry Swen's book "The Napier Co.: Defining 20th Century American Costume Jewelry." The matching necklace and bracelet are also available for purchase. 

Napier Goldtone Knot Earrings, 1957 Ad Piece