18” Black & White Deco Style Choker w/screw Closure

Fun and funky 18” black and white deco style choker. I have had this in my collection for many years. I bought it at an estate sale in the 80’s. Because of the screw closure I assume it is a 60’s piece. I think it is either plastic or lucite material. I gently used this item. Great shape for its age.