EXTREMELY RARE. Not a lot of information is available on this piece. It is made of 3v super steel and no doubt is the early predecessor of the ZD30 pictured next to it. It never saw production after the first 40 were made when it's designer passed and the production was halted. This is the complete set with the sheath, hone and tag in mint condition. You wont find a finer example if you can find one at all and it very likely would not be complete if you did.