Southwestern Jewelry - This is a sponge coral, bone, carnelian and sterling silver necklace. 

It is hallmarked 925, signed Peyote Bird, weighs 18.4 grams, beads vary from .25 to .38" wide. Total length is 20" long, which includes the 2" extension, so necklace can be worn from 18" to 20" in length.