Perfect for the jewelry-loving graduate this spring, a 3-D figural pin in the form of a red Bakelite or Catalin graduation cap complete with black tassel. From 1940 via an advert and likely from Martha Sleeper. The ad did say Catalin. It is 2" on top and completely 3-D. The clasp might have been a rollover but I don't think so. It is an open c-clasp no and fits tightly. The top 'board' might have super slightly lighter red stain (a bit like water) but you can only see it in certain light when tilted and do not notice it . Please do NOT throw this fantastic figural in the air when you celebrate, and if you get into a brawl, please remove from your gown.