thanks for the replies, guys
pretty much as i had though.
what about the swords with real N.B.T.H.K. papers? are they spot on when they claim that the mei is real?
can I 100% trust that what the papers say about the blade is correct?
the reason for this thread is that i've seen some swords for sale, all rated TOKUBETSU HOZON by NBTHK
but the signed ones cost about twice as much as the unsigned ones.