?Native American Sterling Turquoise? Cuff bracelet

I have this cuff bracelet that I believe could be Native American Navajo made. It is Hallmarked and I believe (from some research) the stone could be turquoise. Is anyone familiar with this hallmark or the handy work? Thank you
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Not sure reason other photos didn’t upload so I posted 3. I have more if needed. Thank you

I read the hallmark as J Guerro, not familiar with him but did find another item with a search. The turquoise has a Dry Creek look.


Thank you for your input and help. I really appreciate the information