The last guthook knife I'll make

Here's a companion knife for the knife mentioned below ("a custom knife for a buddy"), and absolutely the last guthook style I'll make. Material is 154CM (a thoroughly uncooperative and resistant material to work with); hardness is 60 Rc. The handle is very old curly black walnut. I made the sheath after the friend said he really wasn't all that fond of a full length pouch type. This sheath has the better attributes of a pouch, but with an open back so the knife can be removed easier.