Probably the most popular knife steel of the 20th Century. The first choice of almost all beginning knife makers and still the primary steel for the famous Randall Knives. O-1 is a simple and basic tool steel that can be hardened to well over 60 Rc. With .9% Carbon, 1% Manganese, 5% Chromium and .5% Tungsten. It is a great general purpose tool steel and is very forgiving to the inexperienced knifemaker. This oil-hardening tool steel can be used by both the blacksmith and the stock removal makers.
Volcanic glass: whenever it could be found it was much preferred to the more common forms of chert. Glass was much easier to work and worked cleaner than any of the other materials available to primitives.
The front side of a knife, with the point of the knife to the left and the edge down, you are looking at the obverse (front) side of a knife.
Walrus, dogs, bears and raccoons and probably whales and seals have a bone in their penis, this bone is called an oosic. The walrus oosic is large enough to make into knife handles and is more popular than pretty.