Vintage Southwestern bracelet with inlaid Paua shells and enamel, handmade

Vintage handmade Southwestern bracelet. With Paua shells inlay and brown softly glowing enamel. In excellent condition. Fits wrist size 7" and smaller. Stamped, but I can't read it. Most likely it is made in Mexico, of either 925 sterling silver, or Alpaca silver tone metal.