Crab Brooch Pin

This is a gently used, vintage crab pin. It measures 2 1/4” wide by 1 3/4” tall. Textured details emphasized by dark oxidation. I’m not sure what it is made of, but it does not tarnish and is hypoallergenic. Can be used on a shirt, jacket or as a hat pin! Comes in bag shown in picture. Let me know if you have any other questions.