Early Zuni Sunface Leather Bolo Tie in Sterling Silver

Early Zuni Sunface black braided leather bolo tie. The slide and tips are sterling silver. Slide has the old style of guides. It is inlay set with natural turquoise, mother of pearl, coral and jet. It is almost 1" in diameter. Tips have some shallow dents and measure 2" long. The tie is 36" long end to end. Silver is very tarnished. I don't see a hallmark. Super nice early piece C. 1920-1930.