Black and white scrimshaw by David Smith on ancient mammoth ivory. We had the original scales on this fine Boker knife replace with mammoth ivory. Then the scrimshander did his magic on both sides. The engraving on the bolster and gemstone on the thumbscrew were added by the owner who is no longer with us. The mammoth scales were done by the late Ken Fredericks. Excellent opportunity to add a vintage Fredericks piece to your collection at 1990s prices.