That knife must have experienced some very severe and extended service !
Or somebody went crazy with a grinder ?
its real some jamokee reground the blade and did the job like a drunken baboon....
That appears to be a strip of velcro. I’ve bought a used CS that had a strip of velcro glued to its sheath that looked similar.What's with the sheath? Looks like a glued on belt loop on the top of the sheath, or?