I am not finding this hallmark in any of the known books. Any guesses?
This is a hard one. Two families her in town specialize in this look, last names are James and Smith. Julia Smith maybe has a daughter or son doing it, Geraldine James along with name Blackgoat might be a good google search. Geraldine James Blackgoat Navajo jewelry heart, worth a try.
Much appreciated Jason! As always!