Vintage 925 SILVER FNA black And Abalone Shell Chunky Statement Ring Size 6

In very good condition. Beautiful Sterling silver ring marked 925. Initials FNA are also on the inside, I believe it is made by Native Americans. Really nice craftsmanship. Substantial ring, wide band that tapers a bit on the back for comfort. Size 6 women's . Measures 1 1/4 inches wide across the top where the black and abalone is. Gorgeous piece.