Obsidian Knife by Flintknapper, Dale Duby of Great Basin Art. This called a Coyote Jaw Knife SOLD 

Artist “ Dale Duby, of Prairie City, Oregon, started his business, Great Basin Art, to reproduce the stone tools and weaponry of vast bygone eras using only the finest obsidian. Dale recreates these items by many of the same techniques used by pre-historic man. Grinding, abrading, percussion and pressure flaking are terms used by today's modern flintknappers.“ from Great Basin Art’s website 

Please look at all photos, the certificate show some handling wear. Includes original  stand and signed certificate. But knife is beautiful. Call with any questions or email SOLD