Beaded loop earring, on cone engraved a 3 armed saguaro cactus on flat land, mountain peak behind it

I couldn’t imagine carving this into the cones, but to me it does look engraved. Beautiful light blue hoops with shell? strung on string. 3 1/2" long. Two turned out the same, would not let me delete it. As you can see maybe it goes about half way around the cone. Did they use gut string back then? Any help would be appreciated. I have gone through Southwest hallmarks, I didn’t see it. And would it be Navajo? And the kind of turquoise might be?


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The beads you think of as Santo Domingo made. However, many times Navajo artist will string them. I can not make out the cones, you might think about polishing them and seeing if that helps. String is very common, not sure what back then is, but string has been used for a very long time. It looks like Arizona turquoise.