Bintage Sterling Silver Native American Cuff

Old Navajo Sterling Silver Cuff with Turquoise as the center stone and coral stones set at each end of the middle vertical feather. No signature or stamp that I see at this time. I’m cleaning the cuff slightly with my fingers to clear the built of patina that looks like dirt. Only to clean it up a bit and maybe reveal some sort of identification markings. Categorized cuff as women’s in the info form however the cuff is in fact a unisex piece.