A friend bought this knife for $45 at some military show. He was told it was a Kinfolks WW2 fighting knife. The knife *looks* like a Kinfolks knife, except it is double edged. The blade has no markings at all, which I thought was unusual. I can't find a double edge Kinfolks anywhere. The sheath is no doubt a Kinfolks sheath for a double edge knife but this knife doesn't fit right. It lacks 1/2" of going all the way in the sheath, and it's also too thick and wide for the sheath and has ripped it on one side. To me, the knife doesn't go with this sheath, but what do I know? Any help here would be appreciated. Thanks, Gary