Bishop

"The Lewis Chessmen (or Uig Chessmen, named after the bay where they were found) are a group of 78 chess pieces from the 12th century most of which are carved in walrus ivory, discovered in 1831 on the Isle of Lewis in the Outer Hebrides, Scotland.^[1] They may constitute some of the few complete medieval chess sets that have survived, although it is not clear if a set as originally made can be made from the pieces. They are owned and exhibited by the British Museum in London, which has 67 and the Royal Museum in Edinburgh."  -- http://en.wikipedia.org/wiki/Lewis_chessmen