This is the first one of these that I know of that I have handled and shot so I had to ask Tony what the heck I was looking at. This pattern was designed for 2000 Case/Bose Collaboration and is the "cousin" of the 4" "Backpocket".

Thanks to 2shot for letting us have a look at both the knife and the ebony 1911 grips in the foreground. You can see more images of this knife in Kent's Gallery on BoseKnives.com.