I'm not seeing this as a American SW silver jewelry at all, plus I've never seen a .925 on any genuine Navajo silver myself personally. I think it's a imported silver jewelry piece. Most likely it came from an Asian source such as Indonesian or possibly India ??. The mark may not be found on any reference on the internet either. It is nice looking and worth more then scrap silver imo.
Hi! We've had this piece many times. It's reversible and the marks on the back are designs rather than signature marked. It's SW style, but as Tamrock noted, it's an imported piece.