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Antique Japanese Sword Katana Signed by Shigemune
NBTHK Tokubetsu Hozon Certificate


Made in Japan
Free Shipping Worldwide

SIGNED: Chikuzen Jyu Minamoto Nobukuni Shigemune

Included: NBTHK Tokubetsu Hozon certificate, Shirasaya case, traditional sword carrying case, Sword maintenance kit, full exportation support

Category Katana(Shinto)
Age The middle of the Edo Period(1688-1703 A.D.)
Swordsmith Minamoto Nobukuni Shigemune(The third generation Nobukuni Yoshimasa)
Certificate NBTHK Tokubetsu Hozon Certificate
Location Chikuzen Province(Fukuoka prefecture)
Blade Size Length: 68.2 cm(26.9 inches) , Curvature: 1.4 cm(0.6 inches)

We use high resolution images. You can enlarge all the photos to see the detail of the blade and sword mountings.

Only 1 left in stock


Antique Japanese Sword Katana Signed by Shigemune with NBTHK Tokubetsu Hozon Certificate 

 This sword was signed by Chikuzen Jyu Minamoto Nobukuni Shigemune in the middle of the Edo Period. Chikuzen is the name of the province located in Fukuoka today. Jyu means living. Minamoto Nobukuni is the name of his school, and Shigemune is his maker’s name. Those who belonged to Nobukuni School in Chikuzen province were called Tsukushi Nobukuni, one of the most prospered sword forging schools in Kyushu island.

 The Nobukuni school was initially founded by the first generation Nobukuni in Kyoto. The school stayed there for a few generations. However, the 4th generation Nobukuni Sadamitsu had to leave Kyoto city as the battle between the south emperor court and north emperor court became severe, and the Kyoto city was burned(the late 1300’s ). We called this battle Nanbokucho war when the Japanese imperial court was separated into two.Nobukuni Sadamitsu managed to arrive at Usaha(Ohita prefecture)to serve the Ajimu clan. However, after Ajimu clan was destroyed, The 12th generation Nobukuni Yoshisada moved to Chikuzen(Fukuoka prefecture)to work for Kuroda Nagamasa, a famous feudal lord(1602).

 The son of 12th generation Nobukuni was the first generation Yoshimasa. This blade was forged by the third generation Yoshimasa in around 1688-1703 A.D. (in the middle of the Edo period. Shigemune was the name used by the third generation Nobukuni Yoshimasa at the end of his career as a swordsmith. It was common for some swordsmiths to change his name, especially when they got a new title from the emperor or took over the school from their masters.

 This sword has a Tokubetsu Hozon certificate issued by NBTHK. This authentication paper was only given to Japanese swords, especially worth preserving by Nihon Bijutsu Touken Hozon Kyokai(the Society for the Preservation of the Japan Art Sword). This blade is in excellent condition, and the Suguha Hamon is beautiful to observe. It comes with Gold color Saya(sword case).

【 Blade】
Cutting Edge Length(Nagasa)68.2 cm(26.9 inches)
Curvature(Sori)1.4 cm(0.6 inches)

HamonThe blade pattern created by the tempering process. 

JimonVisible surface pattern on the steel


NakagoIt has a signature that says 筑前住源信国重宗(Chikuzen Jyu Minamoto Nobukuni Shigemune)


Fuchi-KashiraA pair of matching sword fittings that cover the upper and bottom parts of its sword hilt. Gold inlay was applied on them.

Tsuka and MenukiTsuka is the handle of the Japanese sword and Menuki is its decoration .

Grape design was sculptured. Grape symbolizes prosperity for descendants.


Tsuba and HabakiTsuba is the handguard for the Japanese Sword and Habaki is the equipment to make the blade not touch its scabbard inside.It prevents the blade from getting rusty and chipped.

It has the openwork of eight bridges, and Japanese iris are engraved. Japanese iris is called “Shoubu” in Japanese, and another word “Shoubu” means battle in Japanese. These two words have same pronunciation therfore, lots of Samurai loved this flower pattern.

Saya Saya is the scabbard for the Japanese sword.  

CertificateNBTHK TOKUBETSU Hozon
Tokubetsu Hozon certificate was only issued to Japanese swords especially worth preserving
by Nihon Bijutsu Touken Hozon Kyokai(the Society for the Preservation of the Japan Art Sword)



【How to make sure the condition】
We uploaded high resolution photos for you to check its condition thoroughly. If you like to see more photos with different angles, please feel free to contact us. We will be happy to send them to you so that you can make informed decision. If you are currently living in Japan or visiting, you can visit our actual shop in Tokyo to inspect the sword with reservation.

It is essential for us to know that you are happy with your choice of a sword. and we are prepared to use the best of our ability to serve you.

【Payment Method】
We accept payment through Stripe(Credit card) or Paypal. If you prefer other payment method, please contact us. After confirming the payment from you, we will apply for an export permit.

Japanese Sword& Export Process
The antique Japanese swords we sell are hand-forged edged swords, which are at least 150 years old or older. Also, the blades were made of Japanese special carbon steel called TAMAHAGANE. Samurai Museum is familiar with the proper legal procedure for an antique/ authentic Japanese sword to be exported from Japan. We have sent more than 300 Japanese swords to amazing owners who appreciate its historical value.

Each Japanese sword is registered under the Agency for Cultural Affairs and the Board of Education in Japan.They issue a registration paper for each Japanese sword for its owner in Japan to legally possess it. The Japanese sword with its registration paper means it was traditionally hand-forged in Japan.

To legally export the sword from Japan to other countries, we will have to apply for its permit to the Agency for Cultural Affairs(Bunkacho) and return the original registration paper to the Board of Education. It normally takes around 1-1.5 months to receive this permit. And we would like you to expect at least 2-3 months for your order to arrive at your given address after you ordered.

How to buy an antique Japanese Sword

We have shipped Japanese swords to the USA, France, Canada(BC, AB), Australia, Germany and Mexico. If you don’t live in these countries and like to order, please contact us first before making a purchase.

Once we receive the export permit, we will inform you and ask if it is okay for us to ship. After confirming you are ready to receive the sword, we will proceed with its shipping. We use package cushioning to protect the item and put it in a PVC pipe, which is one of the most secure packages because of its durability.

We ship with EMS, an international expedited shipping service provided by Japan Post in Japan. We will send you a tracking number for your order as soon as we hand it to the post office. We will put 100 % insurance on the shipping document without any extra charge. Based on the total amount, there might be a duty tax to pay, depending on the countries.

It will normally takes 5-14 days for the item to arrive at your given address after we dispatch it. Time of delivery is estimated as accurately as possible by the carrier but does not take into account any delays beyond our control such as by inclement weather, post office holiday seasons.

*Please keep in mind that due to the spread of COVID-19, there are delays in shipping to many countries as most of the airlines are reducing the number of flights from Japan. If you like to know the detail about shipping, please feel free to ask us.

A Guide to Japanese Sword Maintenance
If you like to know how to take care of the Japanese sword, here is the video for you. Mr. Paul Martin, Japanese sword expert, shows you how to give proper maintenance to your sword. When you purchase a Japanese sword from us, you can get a Free sword maintenance kit, which appears in this video.


If you like to see more antique Japanese swords for sale, please check the link below.

Only 1 left in stock



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NBTHK Tokubetsu Hozon Certificate”

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