Hi i new here but the black samurai you will find afterI reported then to the authoritys in Japan may have been shut down you canot buy a cheap samurai sword that is any good even dealers in Japan will often get a crap blade and re weld an old tang onto it you can even buy old tangs in the auctions and i was reliably informed that all papers before 2004 are usless because the whole system was corrupt they were all taking bribes so were removed to jail yet the dealers get away with it , ALL Japanese blades are regesterd with the gov and need papers to be released from Japan , by the gov and customs
hope this helps ps just checked the black samurai site its gone ( sorry its back again )
tezza