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Updated: 5 Jul 2022


Antique Shirasaya Naginata
Signed by Nobukuni Yoshisada
NBTHK Hozon certificate


SIGNED: Chikushu Fukuoka Jyo Nobukuni

Included: Traditional sword carrying case, Shirasaya case, Sword Maintenance kit, full exportation support

Category  Naginata(Shinto)
Age Kan-Ei Period(1624-1645 A.D.)
Swordsmith Nobukuni Yoshisada
Certificate NBTHK HOZON certificate
Location Chikuzen (Today’s Fukuoka)
Blade Size Length: 53.3 cm(21.0 inches), Curvature: 3.6 cm(1.4 inches)

Thank you for visiting our website. This sword was sold as each antique Japanese sword is one of a kind. However, we might be able to show you something similar because we have various types of swords available. Also, there are ones that aren’t listed on the website yet. Our customer service will help you find your ideal blade you will cherish for generations. Please feel free to contact us or check the list of swords. We will be more than happy to help you.


Antique Shirasaya Naginata Signed by Nobukuni Yoshisada with NBTHK Hozon certificate

 This sword was signed by Nobukuni Yoshisada at the beginning of  the Edo Period. He forged swords in Chikuzen province located in Fukuoka prefecture today.  Nobukuni is the name of his school, and Yoshisada 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 founder of Tsukushi Nobukuni school was Sadamitsu, who had forged in Kyoto under the Nobukuni school’s headquarter. And he moved to Chikuzen and founded the school.

From the Edo period, Nobukuni school gain more fame by working for Kuroda Clan. Yoshisada was the first one who got invited by the famous feudal lord, Kuroda Nagamasa. He accepted the invitation and moved from Fuzen province to Chikuzen province to forge swords for the lord.

 This sword has a Hozon certificate issued by NBTHK. This authentication paper was only given to Japanese swords, worth preserving by Nihon Bijutsu Touken Hozon Kyokai(the Society for the Preservation of the Japan Art Sword). This Naginata is in excellent condition and has gorgeous curvature.(Sori) Naginata is a kind of a Japanese traditional pole sword, one of the strongest weapons Samurai used.


< The Blade >
Cutting edge Length  53.3 cm(21.0 inches)
Total length: 120 cm(47.2 inches)
Curvature 3.6 cm(1.4 inches)

HamonThe blade pattern created by the tempering process

JimonVisible surface pattern on the steel

NakagoNakago is the hilt of Japanese blades. There is signature on the blade. It says 筑州福岡住信国(Chikushu Fukuoka Jyo Nobukuni)

Habaki Habaki is the equipment to make the blade not touch its scabbard inside. It prevents the blade from getting rusty and chipped.

Horimono: Horimono means sculpture on the blade. It has sanskrit letter inscribed.

CertificateNBTHK Hozon Certificate


【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 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. 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) or PayPal, both of which are secure payment methods. If you prefer other payment method, please contact us. After confirming the payment from you, we will apply for an export permit. You can either pay in JPY, USD, EUR or GBP. The price is decided in Japanese Yen. The price in other currencies is calculated automatically based on the exchange rate.

We have shipped authentic Japanese swords to the USA, Canada(BC, AB,ON), Mexico, Australia, UK, Germany and France. 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.