Vintage Navajo sterling silver necklace

Rare graduated sterling silver necklace. 18 inches. Stunning and classic. A truly beautiful, unique, and timeless piece. Please note: this is a vintage piece and thus the patina and markings reflect the vintage. There are some black marks on one side of several beads. Can be worn without these sides visible. Please see photos for reference. Possible Navajo artist: Jan Mariano.