This vintage pendant is a unique piece from the early days of scientific crime research. The pendant is made of metal and features a 1 1/4 inch design with a gold color. Its style is a pendant that can be worn as a necklace. The pendant is a perfect addition to any collection of vintage and antique jewelry. The metal used to create this pendant is unknown but adds to its mystery and allure. It is a great conversation starter and a must-have for any lover of vintage jewelry.