Black and White Plastic Kitten Kitty Cat
Honestly, I have no idea what this is! The cat is made of plastic, black and white with blue eyes and pink whiskers/ears. It's not bakelite. On the back, looks like an attachment or casing for a watch or music, which may be able to be removed and re-set as a pin. If you plan to use it for a jewelry creation, the backing would serve nicely as a hidden way to attach kitty.