What can anyone tell me about these knives. There doesn't seem to be much info on them to find. I've got a real itch for a ZT folder and I'm thinking this one may go to make room for it, but I don't know, maybe I should hold on to it. All I know about it is I bought it sometime before 1994. Are they worth anything? They seem rare, I love the knife but don't ever see myself using it. Would like to know a little more about it before I make a decision. Thanks, Mark.