VTG Native American Cluster Bracelet

Vintage Native American cluster bracelet Unsure of its age or the stone, but it is definitely old due to its aged patina. Fred Harvey era? It's in good condition. White spots on the sterling silver, but can probably be cleaned off if taken to a professional jeweler. Measures 2 1/2 inches wide. Signed "LW" on the back, probably Lorraine Waatsa from the Zuni tribe. $500