Thread: What kind of pocket knife is this?

Easy. That is a typical skinners knife. Very typical shape, used by hunters. It is hard to imagine any other practical use (just my poor imagination). Probably it could be used as an emergency knife in a car. Good shape for cutting seat belts without any risks of making any wounds into skin.

Edit: People who work at sea & coastal enviroments have used tools made of carbon steel for centuries. Still do. With the larger blades (larger than razor), carbon steel is so much easier and faster to keep sharp than stainless. Rust is no problem. If you can not paint it, then just oil it as often as it is necessary. Stainless steel hasn't been around that long. In the times of old tools were very expensive things, not something to throw away with first spots of rust. Usually they were personal property of the person who used them. His/her life and living was depending not only skills but also tools they used.