It's rare, you know, especially because it's solid black. I have never seen a black one anywhere. From the 50's and modeled by Jayne Mansfield (check out the photo 3 with some serious "50's style" photo-shopping 😳). This can be worn so many ways, you may wear it out completely! Solid black Rayon, adjustable too. Photo 2 shows the instructions that originally came with one of these, taken off the Internet, so this doesn't come with instructions. You can save to a folder and print out if needed. It shows the many different stylings but it doesn't have to end there. It's sort of a triangle with a headband across the top. Two sides of triangle to point measure 25".
Have fun playing with it!

This item is sold from an excellent, highly rated vintage boutique in Northfield, OH.