Oh God, don't touch it and ruin that character patina! Looks like it might be an old Western cutlery. Case recently re-introduced a chrome vanadium (don't know why they can't just say carbon steel) version of their folding hunter. My dad passed away early and it was my uncle that I owe my love of the outdoors to. He carried one and I immediately sold every super steel safe queen I own and got one. The greatest generation knew, if you've got enough sense to keep your gear dry and oiled carbon steel is just fine!