Have sword authorities in Japan moved the goalposts - or just lost the plot entirely?

[Hector]

When I first started to explore this wonderful hobby, it was triggered, in part, by living in Japan and by my wife's family owning some swords.
They took (and still take) this social responsibility very seriously and impressed the same sense of following strict rules of behaviour, etiquette and the legal obligations of sword ownership upon me.

 

Therefore, I took time to learn the laws about what I could and couldn't own - obviously very different to those laws in the States.

 

For example, ownership is regulated by the Firearm and Sword Possession Control Law (銃砲刀剣類所持等取締法) which is very specific about what is allowed to receive a tōrokushō (銃砲刀剣類登録証) registration certificate in Japan.

 

A sword must be a genuine, traditionally forged Japanese sword (nihonto) possessing recognized artistic or historical merit, rather than a modern, industrial, or mass-produced weapon. 
 

Core Eligibility Criteria

Under the Firearms and Swords Control Law (Jūtōhō) and guidelines overseen by the Agency for Cultural Affairs (Bunkachō), the examining Prefectural Board of Education looks for the following.

Traditional Construction: The blade must be forged using traditional Japanese methods (such as folding and water-quenching) and traditionally crafted steel like tamahagane. 

Artistic Merit (Geijutsusei): The blade must show traditional aesthetic traits in its shape (sugata), surface grain (hada), and temper line (hamon) reflective of recognized master smiths or historical traditions. 

Historical or Pedigree Value: The blade may feature a recognized signature (mei) or inscription, or hold verifiable historical pedigree tied to a traditional smithing lineage. 
 

Exclusions (What Fails Criteria)

Non-Japanese or Foreign Swords: Sabers, Rapiers, and non-Japanese blades do not qualify.

Mass-Produced Military Blades: World War II-era machine-made or chemically treated war-munitions (gunto without traditional forging) generally do not qualify as art objects and cannot be registered.

 

 

All of which brings me to this question -  what on earth happened here?

 

https://www.samuraimuseum.jp/shop/product/modern-authentic-Japanese-sword-gendaito-katana-signed-by-yoshinao-nthk-kanteisho-certificate/

 

This is a Tokyo based dealer who knows the Japanese law.
Indeed, the sword has a torokusho issued by Shizuoka Prefectural Board of Education), registration number 9436号.

The date stamped on it is 令和8年2月10日 (February 10, 2026) and it is marked 再交付 (“reissued”) — so this particular certificate is a reissue dated this year, not the original registration. 

But the blade is very clearly stamped with a 'Sho' cherry blossom which should automatically negate its registration in Japan (certainly according to another Japanese sword dealer and a Japanese police officer I spoke to).

 

Even more confusingly, it has also received Kantei-sho (鑑定書) origami from an NBTK-NPO shinsa session dated Reiwa 8, June 2 (June 2, 2026) and signed by the organization's chairman Ōhashi Hiroshi (大橋博)

 

 

So, who changed the law and why can't I find any record whatsoever of that change?

 

 

Edited Wednesday at 11:28 AM by Hector

[Brian]

The one thing that I am constantly surprised at, is that people are surprised that exceptions happen. Where there are rules, there are people who will find ways around them.
Attitudes can soften without a change in law. Sometimes someone calls in a favour. Sometimes there is money involved, sometimes no-one cares enough to be strict.
Why do people assume all Gunto are now allowed when a few slip through the cracks? It was always going to happen.
I'm in the gun industry for over 30 years now, and I can't count the number of times I have seen things happen that weren't supposed to happen. 

Sometimes it is because of lack of knowledge too. Because the Japanese have less access to Showato, i believe that there is more info on them in the West than in Japan. Many dealers may think that some Showato are forged and handmade enough to qualify as art. Some people at the relevant authorities may believe that forged and folded, but oil quenched is ok.
Some may believe that occasionally Gendaito end up with Sho or Seki stamps, and give the owners the benefit of the doubt. Sometimes it's just hasty decisions, sometimes carefully calculated ones.
In short, this doesn't surprise me even slightly, and it is happening without a change in the laws. Just one of those things that we have to accept without changing our minds about the way these swords were manufactured

[Hector]

@Brian

 

Thank you for your input.

 

I can well imagine an inept inspector or someone on the take in Shizuoka Prefectural Board of Education - but the chairman and entire shinsa team of the NBTK-NPO?

 

Wow - 'Non Profit Organization' has definitely taken on a different spin nowadays. 😂

 

Hector

[Bugyotsuji]

Nothing to add to Brian's post above, but if you go around repeating your suspicions to trade people in Japan, however true they may be, they will start to form opinions about you!

"Oh, he's a complete innocent, a greenhorn!" "He hasn't been around long!" etc. 

 

PS I had a tanto with three different sets of papers, including an old folding white one from the Edo period. My sword teacher looked at them all and shook his head slowly. "How has Mr X sunk so low?" he muttered, looking at a certificate issued by an organization. (Not the NBTHK)

[Hector]

4 minutes ago, Bugyotsuji said:

Nothing to add to Brian's post above, but if you go around repeating your suspicions to trade people in Japan, however true they may be, they will start to form opinions about you!

"Oh, he's a complete innocent, a greenhorn!" "He hasn't been around long!" etc. 

 

Guilty as charged. 😬

(And I'm happy to keep it that way.)

[Bugyotsuji]

1 hour ago, Hector said:

 

Guilty as charged. 😬

(And I'm happy to keep it that way.)

Join the club! 

[Bruce Pennington]

So far, I have papered blades on:

 

Ichinori, no date, Showa stamp removed

Kanemichi, no date, Showa stamp removed

Yoshinao, no date, Showa stamp

2 Mantetsu blades

 

And not papered but a Registerd Type 95

[eternal_newbie]

11 minutes ago, Bruce Pennington said:

So far, I have papered blades on:

 

Ichinori, no date, Showa stamp removed

Kanemichi, no date, Showa stamp removed

Yoshinao, no date, Showa stamp

2 Mantetsu blades

 

And not papered but a Registerd Type 95

 

And there's at least one guy on Reddit who claims to have brought in a Komonjo-style Chinese katana for a martial arts grading and getting it successfully registered as a shinsakuto (presumably if it looks enough like a shinsakuto and has a reasonably well-done gimei that's all that's needed). And Chinese smiths can make a pretty legit-looking sword if you ask for no-frills tamahagane and a plain-Jane notare or midare hamon in a basic martial arts polish.

[Rivkin]

I would delegate to people like Stephen who knows the process infinitely better but my impression was that in the end you are facing real people who make a decision whether the sword needs to be preserved or destroyed. In my (weird) case there was government support vouching that non-Japanese swords are being temporary imported for cultural purposes and the torokusho was issued. This being said, after I am more aware what the system is - I would not try it again for my own blades.

[eternal_newbie]

3 minutes ago, Rivkin said:

I would delegate to people like Stephen who knows the process infinitely better but my impression was that in the end you are facing real people who make a decision whether the sword needs to be preserved or destroyed. In my (weird) case there was government support vouching that non-Japanese swords are being temporary imported for cultural purposes and the torokusho was issued. This being said, after I am more aware what the system is - I would not try it again for my own blades.

 

Agreed, and it doesn't make sense to require all the people who could potentially have to make this decision to have NBTHK (or NTHK, or NBSK) levels of knowledge. When you're dealing with systems on a national scale, sometimes you have to settle for "close enough in 95% of cases", because those remaining 5% are going to take up 95% of the time and budget otherwise.

[Hector]

Guess we'll be seeing a lot more of these in the future then.

 

I've burnt my soapbox now and look forward to buying a totally legal Kanezane with 'Sho' stamp in the future.

(Not being sarcastic - I like his stuff as examples of interesting militaria.)

[SteveM]

This is a topic that comes up fairly regularly here on NMB. Every year it seems the number of wartime blades (arsenal blades) that are able to be registered increases. If the sword has a registration card, the authenticating bodies will usually shrug and let the sword through their authentication process. There has been no change in the law, but the rigor with which the registering authorities (varies from prefecture to prefecture) reject arsenal blades seems to be fading with each passing year. There may be some discussion going on at higher levels which allows wartime blades to be viewed as historical and having some artistic merit. It is often hard to tell if the steel used in the sword is tamahagane or commercial steel. The kanteisho for this sword, for example, says the sword has ko-itame grain with jinie, so its possible that the registering body let it pass, the hot-stamp notwithstanding.  

 

I think this is a legacy from the post-War occupation that is due for an official reconsideration. The need to distinguish between "art sword" and "weapon" has all but evaporated. These swords are now approaching 100 years of age, so it feels ridiculous and arbitrary to ignore them, or to create an atmosphere where their mere existence is problematic from a legal and commercial standpoint. The market can decide how valuable they are 

[Jacques]

NTHK NPO = not reliable 

[Bruno]

"sometimes these showato are found in attics or hidden by relatives and they take them to get licensed, etc. and the shinsa teams feel sorry for them and don't want to have it taken and destroyed if it was owned by a relative."

 

I would not say NTHK NPO = not reliable.

 

NBTHK also issued Hozon to showato.

[Brian]

Jacques, that's an opinion. And one not shared by most.

[Jacques]

3 hours ago, Brian said:

Jacques, that's an opinion. And one not shared by most.

 

That's your opinion, and IS IT shared by others (How many people do you know who are interested in nihonto?).

Edited Saturday at 10:01 PM by Jacques

[Jacques]

6 hours ago, Bruno said:

"sometimes these showato are found in attics or hidden by relatives and they take them to get licensed, etc. and the shinsa teams feel sorry for them and don't want to have it taken and destroyed if it was owned by a relative."

 

I would not say NTHK NPO = not reliable.

 

NBTHK also issued Hozon to showato.

Star stamped only and it's not a rule. 

 

https://www.jssus.org/nkp/japanese_sword_laws.html

Edited Saturday at 09:59 PM by Jacques

[Bruno]

9 minutes ago, Jacques said:

Star stamped only and it's not a rule.

Have a look at the thread "Papered showato" in the Military section. You will Seki stamped showato with hozon.

 

As for star stamped gendaito  all can pass Hozon or Kanteisho.

Edited Saturday at 10:01 PM by Bruno

[Hector]

5 hours ago, Jacques said:

Star stamped only and it's not a rule. 

 

https://www.jssus.org/nkp/japanese_sword_laws.html

Now I've looked into this, it's been going on for a long time.

 

And to say that it's only NBTK-NPO or star stamps flies directly in the face of documented evidence.

 

Both NBTHK Hozon papered, the first four photos show the stamp clearly filed off with no attempt at repatination and the last two show an intact Seki stamp.

 

Obviously, the NBTHK also doesn't have any problem in deeming these blades 'Worthy of Preservation'.

[Jacques]

OK

 

[Bruno]

As far as I remember and for what it worths, so far only NTHK never papered showato.

[Jacques]

The Japanese can do whatever they want; what interests me is art, not militaria (I might as well collect spoons).

[Hector]

7 hours ago, Jacques said:

The Japanese can do whatever they want; what interests me is art, not militaria (I might as well collect spoons).

 

Why couldn't you just leave it at "OK"?

A simple acceptance - I was actually very impressed.

 

But then along comes the vitriol which has obviously been festering inside you since your initial reply.

 

You always hold up the Japanese - particularly the NBTHK and Japanese authored books - as a yardstick of true authority, taste and knowledge. 
Now suddenly, you don't care what the Japanese (including the NBTHK which issued these documents) do or think. 

You then belittle militaria collectors entirely unnecessarily and throw in your signature sarcasm "I might as well collect spoons") for good measure.

What satisfaction does being so contrarian and unpleasant bring you Jacques? Life is far too short to waste it sitting at a computer trying to bait strangers.

 

PS: just in case there was something beyond mere sarcasm in your mention of collecting spoons, below are some historically and artistically important examples to get you started.

 

Best,

Hector

[Brian]

The fact that there are infinitely more militaria collectors than there are Japanese sword collectors speaks a lot.
Most of those people collect history, not items. And I daresay that man of them have far better investments than many of us Nihonto collectors. And for many people, investment aspect is something that cannot just be ignored in the name of art.
But hey...as they say, "You do you"