Hello all, I just thought that I would add some information that I have. I have a blade signed Endo Nagamitsu and dated may 1945. It was purchased in Japan in 1967 by a navy officer,from the sister of a military inspector who brought the blade home in a shirasaya in 1945 and returned to work and was killed in a bombing. The blade is in very good polish but I am being told because of the rather sharp ( or I could say very square) edges on the Nakago and around the Mekugi-Ana that the blade was never Finish polished? Anyway this blade is as is from the factory in 1945 in Shirasaya and has a two piece Habaki. Don't know if this helps but thought I would put it out there. Mike