Please help identify these sterling and turquoise cuff bracelets , pictures attached

I picked these cuff bracelets up at an estate sale recently and they look to be Indian or Mexican but I don’t know that much about these things.
The one with the biggest stone has R.P. stamped on the back and is very solid and heavy, and the others don’t have any marks.
None say sterling but I have acid tested them on a stone and they are sterling.
Any clues about the artist, possible tribe or values of these?

It looks like I can only upload 1 picture so if more is needed let me know how to do it please.