Vintage navajo Fred Harvey Era signed bracelet cuff turquoise sterling silver

Very old and very aged patina of the sterling, you can polish that off but it takes a very long long time to get to this stage of age. I think it's beautiful as a collector. This is Stamped sterling with another mark inside I'm not sure what it is. see photo for measurement. This is in very good condition for its age. I'm not sure what kind of stone is on it, it does have a little teeny tiny white mark on it, I'm not sure if that's in the stone or what, I'm just not sure.