This elegant brooch is designed in an Art Deco style, adorned with onyx, mother-of-pearl, and marcasite. The base is sterling silver (925) and has a hallmark on the back. It was purchased in the UK in the 1980s and has been stored at home without ever being used. It is a product of Ari D. Norman, a company in London. The pin of the brooch is slightly thicker than usual. I believe it is an item that, when worn on the lapel of a jacket, conveys a sense of good taste despite its small size. Weight: Approx. 3.9g Size: Approx. 14mm x 34mm Sterling Silver (925), with hallmark on the back. A dedicated case is not included, but it will be shipped in a plastic case to prevent damage. Please also take advantage of our 10% discount for combined purchases! Thank you for looking!