[Poison Ring] Rare 18th Century Intaglio Poison RingFine shield shaped carved intaglio, ca. 18th century, depicting a moor's head in profile with incised text "Duris non Frangor." In a solid gold setting, the top opening to reveal a hidden poison compartment. Size M 1. 2. 4. 1 grams, testing 15 ct. gold. The Latin phrase Duris Non Frangor translates to "I am not disheartened by difficulty" or "I am not broken by hardships" and is associated, with the Moor's head, with the The Muir family of Scotland