During my parents move down from Alaska to Sequim, my mom dropped off three knives made by an old neighbor of ours, Red Campbell.  Apparently Red was quite the hunter and outdoorsman.  The horn is undoubtedly from a deer or elk he hunted, and the blades are from something he had around the shop - probably an old chainsaw.
I remember these knives floating around in different kitchen drawers when I was a kid but would have never given them a second thought if my mom hadn't asked me if I wanted them.

They are a fun reminder of my of my childhood in Alaska.