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Updated: 4 Mar 2021


Antique Japanese Sword Katana Signed by Shigemune
NBTHK Tokubetsu Hozon Certificate


DELIVERY TIME : Approx. 1-1.5 months
*There might be delay in shipment depending on countries

SHIPPING TO : USA, Australia, UK, Canada, Mexico, France, Germany, Hong Kong
*Please contact us prior to purchase if your country isn’t listed.

INCLUDED : NBTHK Tokubetsu Hozon Certificate, Shirasaya case, Koshirae Mounting, Traditional Sword Carrying Case, Sword Maintenance Kit, Full Exportation Support

Category Katana(SHIN-TO)
Age The middle of the Edo Period(1688-1703 A.D.)
Swordsmith Minamoto Nobukuni Shigemune(The third generation Nobukuni Yoshimasa) 筑前住源信邦重宗
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.


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

 This sword was signed by Chikuzen Jyu Minamoto Nobukuni Shigemune(筑前住源信邦重宗) 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. 

 The faint pattern of a creature that looks like a bird can be seen at Kashira. It might be Houou (鳳凰, Fenghuang) a member of four fantasy animals which is called “Shirei (四霊)” with Kirin (麒麟, Qilin), Kame (亀, Turtle) and Ryu (龍, Dragon). It is a god beast that looks like a combination of chicken and peacock. It is believed Houou would show up when the brilliant emperor appeared. People appreciate its graceful shape in Japan. 

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

 Grape design is sculptured. The grape pattern symbolizes fertility, a plentiful harvest, longevity, and 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 the same pronunciation; therefore, lots of Samurai loved this flower pattern. Shoubu was also used for spells of longevity, and people believed Shoubu would protect them from evil spirits. 

Saya Saya is the scabbard for the Japanese sword.  

Authentication PaperNBTHK TOKUBETSU Hozon Certificate for the blade

 NBTHK, also known as Nihon Bijutsu Touken Hozon Kyokai (the Society for the Preservation of the Japan Art Sword), is one of the oldest Japanese sword appraising organizations in modern-day Japan. They authenticated the blade on June 13th in the 30th year of Heisei(2018). They appraised it as Tokubetsu Hozon Touken, the blade especially worth preserving for Japanese society. The purchaser will receive this original certificate as well.

Registration Number : Fukuoka 28818
 The Board of Education in Fukuoka prefecture issued a registration paper for this sword . In order to obtain this paper, the sword needs to be traditionally hand forged. With this paper, its owner can legally own an authentic Japanese sword in Japan.



【About us】
Samurai Museum is located in Tokyo, Japan, exhibiting antique artifacts related to the Samurai history. Samurai Museum Shop is the place for those who are interested in Japanese culture and craftsmanship. We deal with antique Samurai swords/armor, traditional crafts made in Japan and so on.

Japanese Sword& Export Process
The Japanese swords we deal with are hand-forged edged swords made in Japan. It was made from the traditional carbon steel called TAMAHAGANE(玉鋼). 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 2-4 weeks to receive this permit after submitting required documents. And we would like you to expect at least 1-1.5 months for your order to arrive at your given address after you ordered. For more detailed info, please click here.

It is allowed for residents in Japan to own authentic Japanese swords without a special license as long as they come with registration papers. Please feel free to contact us if you are a resident of Japan, whether temporarily or permanently. We will also assist you when you leave Japan and need to obtain the export permit.

【Payment Method】
  We accept payment through Stripe(Credit card), PayPal, Apple Pay or ChromePay, all of which are secure payment methods. If you prefer other payment method, please contact us. After confirming your payment, we will apply for an export permit. You may either pay in JPY, USD, AUD, EUR or GBP. The price is set in Japanese Yen. Prices in other currencies are automatically calculated based on the latest exchange rate.

We have shipped authentic Japanese swords to the USA, Canada(BC, AB,ON), Mexico, Australia, UK, Germany, France and Hong Kong. If you don’t live in these countries and like to order, please contact us first before making a purchase. We offer Free International Shipping as long as we can send antique Japanese swords by either EMS or UPS(USA only).

We normally ship by EMS(Express Mail Service) provided by Japan Post.When we receive an order from the USA, we will use UPS instead as EMS temporarily stops shipping from Japan to the USA due to COVID-19.

We will send you a tracking number for your order as soon as we hand it to the post office/UPS. We will put 100 % insurance on the shipping document without any extra charge. Based on the total amount, there might be a duty tax for you to pay, depending on the countries. 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.

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 might be delays in shipping. If you like to know the detail about shipping, please feel free to ask us.

【How to make sure the condition】
Please keep in mind that what you are going to purchase is an antique item. 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. 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.

The Art of Nihonto(Japanese Sword)
Samurai’s history is a profound, eloquent legacy of ancient Japanese warriors in which millions of people worldwide are being fascinated. If you like to find out the art of Nihonto, please click here.

A Guide to Japanese Sword Maintenance
After acquiring an genuine Japanese sword, it is also important to know how to take good care of it. Here is the special 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.



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