Brutalist rhodium plated white enamel bumpy openwork pentagonal shaped center plaque with two plaques on either side bib necklace with hook clasp. Marked "NAPIER" on the hook. Center measures: 3 5/8 inches by 2 7/8 inches wide. Overall this necklace measures: 8 1/2 inches long by 5 1/2 inches wide. The maximum interior circumference is about 15 1/2 inches, but can be made smaller. Excellent condition. a different variant of this necklace was featured in a 1973 Napier advertisement.