The sheath is a Heiser with translucents. I cannot address the "dyed-or-not" part. There will be an article in KNIFE KNEWS: Issue #3, which I am putting together this month. (The newsletter...not just my article)
The knife was ordered by a Doctor who wanted a rugged hunting knife which he could sterilize in an autoclave. Looks like he got it! GTR, Scott, Jason and all of the usual suspects feel confident that there is no other in existence!
More later: By the way: Funny I should see posts from Mitchell and David as I just sent copies of "KNIFE KNEWS" to both of you guys this morning. Glad you like the knife!
Stay sharp, Capt. Chris