Men's Native American Turquoise "Fish Scale" Channel Inlay Sandcasted Ring

This is a heavy Old Pawn Native American treasure! It features natural turquoise channel inlaid in sterling silver. The color of the turquoise is absolutely lovely! The ring is signed with the initials BQR or perhaps BOR, but I wasn't able to find the full name of the artist. The channel inlay with traditional Zuni fish scale motif suggests a Zuni artisan, but the heavy chain link border and Hallmark initials suggest Navajo. So it is a mystery like many of these old rings. Can be worn by a man or woman.