Vintage 925 signed Native American Sterling silver ring w/ EMERALD cabochon

Vintage signed Native American Sterling silver ring with large EMERALD cabochon. well made, thick solid sterling silver band encasing a stunning emerald cabochon. the signature appears to be a 'J' attached to another illegible letter or symbol. the signature has begun to fade over time, but the outside of the ring is still in excellent condition. it is a very unique, vintage made- but contemporary style. it would be a great piece of history to add to anyone's collection. I am open to reasonable offers. the ring is a size 8.