Whale and walrus harpoon, with spruce shaft, walrus bone foreshaft, walrus ivory point secured to the shaft and foreshaft, ice-pick, finger-rest and line-catch: North America, USA, Alaska, Point Barrow, Arctic, Inupiat, 1820s

Circular box or basket, of woven whale baleen, with a walrus ivory base, bought in a tourist shop in Anchorage: North America, USA, Alaska, Point Barrow, Inupiat, by John Hank, 1994

Circular box or basket lid, of woven whale baleen, with a walrus ivory base, bought in a tourist shop in Anchorage: North America, USA, Alaska, Point Barrow, Inupiat, by John Hank, 1994

Silver-gilt punch-ladle with spirally twisted baleen handle with mother-of-pearl finial, part of a tea service made for the Emperor Napoleon I and his second wife, the Archduchess Marie-Louise of Austria: French, Paris, by Martin-Guillaume Biennais, 1810, purchased by Alexander, 10th Duke of Hamilton, in 1830

Silver-gilt punch-ladle with spirally twisted baleen handle with mother-of-pearl finial, part of a tea service made for the Emperor Napoleon I and his second wife, the Archduchess Marie-Louise of Austria: French, Paris, by Martin-Guillaume Biennais, 1810, purchased by Alexander, 10th Duke of Hamilton, in 1830

Brown-black basket made of baleen with bone knob handle in centre of lid, the lid attached to body by means of two leather thongs, with an ivory hook at front that holds down the lid by means of a further thong: North America, USA, Alaska, Wainwright, Inuit, c. 1933

Body of a brown-black basket made of baleen, with bone disk at centre of base: North America, USA, Alaska, Utqiagvik, Inuit, c. 1933

Lid of a brown-black basket made of baleen, with bone knob in centre carved in form of a seated polar bear: North America, USA, Alaska, Barrow, Inuit, c. 1933