Hello All,
I have a question in follow up to this topic from a couple of years ago. I am very new to the wonderful study of nihonto and I was hoping some of you could enlighten me with this particular subject. When evaluating a sword, the state of preservation given its age is obviously significant. That is, with all things being equal, two identical swords made by the same swordsmith in the same style at the same time, the sword that is ubu is held with higher esteem than the one that is suriage. I get that.
However, when examining swords from the Muromachi and Edo (Shinto/ShinShinto) periods, the NBTHK rating system prohibits these swords from achieving juyo status. The criteria states it in terms of "as a rule". Is the reasoning because given the age there was no need for shortening except for unnecessary use/damage and flaws, and because this was generally a peaceful era? What about large tachi that were made into uchigatana for use during the Satsuma Rebellion or Boshi Wars?
Is the NBTHK criteria absolute, or are there exceptions? Paul indicated that juyo is possible under extraordinary circumstances, which I imagine would be based on rarity, historical significance, workmanship, maker, etc.
I ask these questions because I'm trying to understand how suriage affects a sword's value.
Thank you,
Matt U.
I understand that when rating a sword, NBTHK "as a rule" will not