Bro

Quick pic, sorry for the crappy photo. These are the three you inquired about.
The stag stubby is fat blade at 4" long but 2 7/8" wide.
You're right about the Tanto, has a straight cleaver edge. If I didn't know better I'd say Mudbone carved that sheath but it's a Mosher all right. I don't recall Jack doing anything like that before. Very cool sheath.
And yes, according to James this knife, yours, Kevin's and about 9 others were "Project Zebra". For those not familiar, ebony and ivory handles, Mosher sheaths with Zebra inlays. I don't think any two were alike. I always liked the pin-lock sheath on this sheath. Horizontal carry if I recall correctly?
So I'd say mine is a Woodcraft style blade.
I think Kevin's was a large Bird and Trout but I can't find any pictures. When it was offered as part of the deal, I was kind of stunned. I thought only a few were made. I passed on the project back in 2012 I believe. Happy to get one now.