The Lewis Chessmen (or Uig Chessmen, named after the bay where they were found) are a group of 78 chess pieces, most of which are carved in walrus ivory. The were discovered in 1831 on the Isle of Lewis in the Outer Hebrides, Scotland.
The chessmen were probably made in Norway, perhaps by craftsmen in Trondheim, in the 12th century. During that period the Outer Hebrides, along with other major groups of Scottish islands, were ruled by Norway.
by Walter Evans