Not sure if that earlier link had the name or not, but it's called the BOSC ID - that's busse old school custom integral dagger.
The blade,handle tang, butt cap, and guard are all machined from a large solid billet of INFI, with the inlaid handle scales the only thing not made from INFI. It's a little small in person but easily the most gorgeous Busse I've ever seen, and I saw a lot of awesome customs at that show