I can tell you as much as you want to know about the sheath: it was fabricated by Dennis at Dragon Leatherworks, it has a standard cow-leather backing with an ostrich-skin overlay on top, it holds the knife quite well and is designed for off-hand reverse-grip carry, and it is apparently going to be pretty much the only one of its kind for the foreseeable future (apparently knife-sheath-making takes more time/effort than either of us were counting on).
On the other hand, I cannot tell you much more about the knife than what it says on it. My mother tells me her grandmother had it back when their family was settling in the southwest ’round about 1900 or so, the handle appears to be bone so far as I can tell, based on outward appearances it is a round-tang design, the blade is a swaged clip point, and the stamping indicates it might have been a product of Taylor’s Eye Witness out of Sheffield, England, but I know scant little else about it. So, anyone familiar with old-bordering-on-antique knives?
Any idea on when it might have been struck, and what model it might be?