Okayyyy this thing has caused quite the stir lol...finally took it to the jewelery stores and they have no idea of its origins or purpose...one woman who has been in the biz for 40 years said "I've never had one in my store"

So, im calling it:

Vintage Brass Metal Prehistoric Sabertooth Tiger Skull ring Orrrrr some other type of jewelry

Hinged jaw opens an closes...makers mark visible

Excellent condition no matter what and verrrrrry cool piece regardless