This is a traditional Siberian hand forged Yakut knife.
BLADE: 2 1/2" long Forged SAE52100 high carbon steel (Wheel bearing). Thickness 5 mm.
The Evenki knife's unique concave/convex geometry sets it apart from every other knife. http://av-salnikov.livejournal.com/2995.html
The 5 " long knife's handle is crafted from Elm wood and the sheath (Similar to pic) is crafted from the traditional genuine leather and treated with natural oils and beeswax.
The belt loop is crafted from a genuine leather with genuine bear claw and bone bead or Yakut pony hair braid. (similar to the picture)