Well I have it with me today

I went ahead and snapped a pic of the holster over a tee shirt and then covered up with my standard overshirt. The should rig is UGLY, but it's a prototype. I have a bad habit of making ugly prototypes, finding that they work well enough, and then I end up not making a refined version

You can see the knife buck out a little bit, but I wasn't planning on wearing it today and the Glock on my hip is pushing the bottom out a tad. It normally rides very tightly to my ribs.
This particular rig is modular and based on a Tandy Leather shoulder holster kit. I found a pistol flopped around badly on it, but a big knife secured to the shoulder straps carried just fine. The sheath is what I call "accidentally universal". It was actually made for a 15" Boomerang AK, but because of the extreme blade curve and long ratio of blade to handle, it fits several khuks safely and securely. 12" khuks hide away, big chunky 15" khuks carry well, but it seems almost MADE for a nice balance 15" fighter like my Siru.
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The Siru was actually made by the Sgt. and came in one of his gorgeous silver scabbards. I kept it on my wall for a couple of years as a show piece before I got curious as to what kind of blade was REALLY in there. As it turns out, this Siru is just too lively to live its life on a wall. I found another khuk that fit the fancy scabbard and there it hangs to this day. The Siru lives in the drawer by my bed or in my truck and is almost always attached to the shoulder rig unless I'm carrying my Tirtha Bowie.