Other certificates

Only The NBTHK issues certificates?


Other than the NBTHK, there are some associates, appraisers, and shops issuing their own certificate but the NBTHK’s one is still the most popular. Popularity doesn’t mean reliability, the NBTHK isn’t always right. In reality, their old certificates are no longer valid. That being said, you should not choose a sword with other certificates unless you don’t have an eye for a sword or you won’t sell a sword in the future. Without their certificate, it’ll be difficult to sell a sword.

Other Certificates


The following are illustrations of the certificates by 4 associations and 1 sword polisher. Unlike the NBHTK’s certificates, these ones don’t have any rank, they just certify if a signature of the sword is correct or attribute an unsigned sword to a certain smith or school.

 

Token Kenkyu Rengo Kai

kenkyu rengo japanese sword

A: Serial number
B: Item classification(KATANA(), WAKIZASHI (脇差), TANTO (短刀), etc.)
C: Inscription in the NAKAGO() *if the sword is unsigned, attribution is given to a school or a particular smith.
D: Blade’s length
E: SORI(反り)
F: The name of the judge
G: Issue date

 

Fujishiro Matsuo

fujishiro japanese sword

A: Serial number
B: Inscription in the NAKAGO() *if the sword is unsigned, attribution is given to a school or a particular smith.
C: Blade’s length
D: SORI(反り)
E: HADA(肌)
F: HAMON(刃文)
G: Item classification(KATANA(), WAKIZASHI (脇差), TANTO (短刀), etc.)
H: Carving
I: Issue date
J: Picture of the Nakago

 

Nihon Tosogu Bijutsukan

tosogu japanese sword

A: Serial number
B: Item classification(KATANA(), WAKIZASHI (脇差), TANTO (短刀), etc.)
C: Inscription in the NAKAGO() *if the sword is unsigned, attribution is given to a school or a particular smith.
D: Blade’s length
E: Issue date
F: Name of the chairman
G: Picture of the Nakago

NPO Nihon Token Hozon Kai

npo japanese sword

A: Item classification(KATANA(), WAKIZASHI (脇差), TANTO (短刀), etc.)
B: Inscription in the NAKAGO() *if the sword is unsigned, attribution is given to a school or a particular smith.
C: Blade’s length
D: Issue date

 

Nihon Token Hozon Kaihozonkai japanese sword

A: Inscription in the NAKAGO() *if the sword is unsigned, attribution is given to a school or a particular smith.
B: Blade’s length
C: Issue date

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