Breast ornament comprising a slab of wood fringed with red-dyed goat hair, the centre covered with black cloth and decorated with coloured paper and a row of Job's tears, worn by young men: Assam, Kohima, Angami Nagas

Breast ornament (thatsu), male, wood decorated on one side with rows of cowrie shell and overlapping red-dyed, black and white goat hair surrounded by a fringe of red-dyed goat hair with a cloth strap: India, Assam, Angami Naga

Breast ornament, nearly circular, consisting of pearl shell inlaid in sperm whale ivory with stars and bordered with segments of the same material, worn by high-ranking men: Pacific Peoples, Fiji

Breast ornament, in form of a square of hide, ornamented with a series of overlapping groups of incisor teeth from the jaw of caribou, probably shamanic: North America, Canada, Nunavut Territory, Hudson Bay, Southampton Island, Inuit, early 20th century

Breast ornament or kap-kap made from a piece of turtle shell cut to represent a stylized frigate bird, and attached to a ground shell disc: Melanesian, Santa Cruz Islands, early 20th century

Ornament (kapkap), brow or breast ornament made from a circle of clam shell (Tridacna) overlaid with an openwork of turtle-shell and worn as a symbol of authority or power: Oceania, Melanesia, Papua New Guinea, Admiralty Islands, 19th century

Ornament (kapkap), brow or breast ornament made from a circle of clam shell (Tridacna) overlaid with an openwork of turtle-shell and worn as a symbol of authority or power: Oceania, Melanesia, Papua New Guinea, Admiralty Islands, 19th century

Breast ornament formed of a disc of cymbium shell and a thin perforated plate of turtleshell: Melanesian, Admiralty Islands, Nares Bay

Circular breast ornament of shell and tortoiseshell: Melanesian, Admiralty Islands

Breast ornament or heitiki of jade, carved in the form of a human figure with bulbous eyes: New Zealand,Taranaki area, Māori

Breast ornament or heitiki of jade carved in the form of a human figure: New Zealand