Vintage Navajo Sterling Onyx Marked  RB  Sterling  (from research -Richard Begay) Earrings & RR marked and inscribed sterling (from research-Russ Rockbridge) Necklace Set.  Pre owned good condition with noted oxidation patina so needs polishing. The necklace measures 10.5" up to end of pendant and earrings 0.9". For more details please study all pictures