Robert Mitchell — Navajo Silversmith & Hallmark

Robert Mitchell is a Navajo silversmith known for tufa cast work, with a specialty in bracelets. The Hougart hallmark reference records him as a practitioner of tufa casting, a traditional Navajo technique in which molten silver is poured into molds carved from volcanic tufa stone.

He is the brother of Eugene Mitchell, a connection noted in the Hougart reference entry. The family relationship indicates a silversmithing lineage within the Mitchell family. No active period, birth year, or additional biographical details appear in the available source record.