This is a forged copper cuff with a large hand-carved bone accent.
The copper has been treated with a non-toxic agent to bring out the beautiful verdigris oxidisation that gives it such a richly patinaed effect, then sealed to protect the finish.
As with all my bone carvings, this is a one-off piece, and I will not repeat this carving again, making this a one-of-a-kind cuff just for you!