Very nice Navajo turquoise and sterling ring, purchased in Arizona in the early 1960's. It is a size 4, and the attractive vertical design makes it a nice "pinkie" ring if you do not have small hands.
The ring is in excellent condition, but the marks on the inner portion of the band are worn and difficult to read, even under magnification. I can make out 925 and "ster". I believe the rest must be the maker's signature or initials.
There is very mild tarnish. I do not polish sterling, and leave that up to the discretion of the new owner.