This hinged bangle is not marked but looks like it is Mexican silver or Alpaca silver which is not silver at all. The top of the bracelet is an elongated oval inlaid with abalone shell in a floral design and filled in with a turquoise cloisonne or similar technique.
**This bracelet is quite small and will not suit the average wrist. It would be ideal for a young girl or a very petite woman. It measures 6.25 inches around and although it opens wide, it is meant for the small-boned skinnies out there. Condition is very good vintage.