Vintage Celluloid Brass or Copper Bracelet Bangle. I attempted to pick it up with a magnet and there was no magnetism at all so I am thinking that it is brass or copper. I did rub the celluloid and it seemed to stink to me, so I believe it is celluloid. It looks like there is tarnish on it and it simply looks old. Measures about 27/16" dimension on the within.