The following is a snipet of an article from MAD reporting on the results of a Cowan Auction back in 2007.
"...Ivory objects included an Eskimo carving believed to have been the front brace for a kayak. Showing people, animals, and other objects on the front and back, the 12½" long brace was made from fossilized walrus ivory and sold for $21,850. A Nunivak Island carved ivory cribbage board showing various arctic animals, 26" long, made $11,500. A Nunivak Island two-piece ivory cribbage board, 11" long x 4¼" wide, sold for $8050. It had two carved walruses biting the tails of seals that were chewing on the tails of opposing seals, with a bear cub on each end of the board and two sea mammals within the frame. Even a pair of buttons showing carved human heads, 2" square, brought big interest, selling for $3450."