I should have noted the episode I had no idea he switched knives so often, though it would seem you gents have his knives pretty well figured. (he ahd two pack horses with him in this show, if that helps, can't be too many of those)
It was the size shape and overall appearance of the forge stamp that made me think it was randall, does the winchester get a stamp the same way? I didn't actually get to read it, becasue the show being what it is, it was in use at the time.