Might the "Q" division have an answer?
Your area of interest ping.
You could always do a search on BladeForums, which I tend to like a little better than the other knife enthusiast forums to see what you can uncover there. They have a distinctly conservative mindset over there.
If I stumble across anything I'll drop another comment here. Good luck with your research about the knife...
~ Blue Jays ~
Look like this?