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Updated: 28 Jan 2023


Antique Japanese Sword Tachi attributed to Ieyoshi
NBTHK Tokubetsu Hozon Certificate


DELIVERY TIME : Approx. 1-1.5 months
*We ship from Tokyo, Japan. There might be delay in shipment depending on countries.

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

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

Category Tachi (KOTO)
Age 1469-1504: Mid-Late Muromachi Period
Swordsmith  Attributed to Ryokai Ieyoshi (了戒家能: Unsigned)
Certificate NBTHK Tokubetsu Hozon Certificate
Location Bungo (Today’s Oita prefecture)
Blade Size Cutting Edge Length: 72.0 cm ( 28.3 inches)
Curvature: 1.2 cm ( 0.47 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 Japanese Sword Tachi attributed to Ieyoshi with Tokubetsu Hozon Certificate 


 This blade was attributed to Ryokai Ieyoshi (了戒家能) by NBTHK. Ryokai is the school name and he was a member of Tsukushi Ryokai school, which specialized in forging *Yamashiro DEN tradition in Bungo province (Today’s Oita prefecture). According to available records, he was especially active in sword-forging during the Chōroku era (1469-1504: Mid-Late Muromachi Period). His birth name was Ryokai Sukedayu.

Ryokai School
 Ryokai was a swordsmith from the late Kamakura period in Yamashiro Province(Today’s Kyoto). It is said that he was a son of Rai Kuniyuki (来国行) and a younger brother of Rai Kunitoshi (来国俊). Both of them are renowned swordsmiths throughout Samurai history. 

 Ryokai founded his own school, and the apprentices were allowed to use Ryokai in their maker’s names. Ryokai’s son was Ryokai Hisanobu, who took over the school. And his apprentice Ryokai Yoshisada also run the school after Hisanobu. However, Ryokai Yoshisda had to evacuate Yamashiro province during the late 14th century because the battle between the south emperor court and the north emperor court became severe. And as a result, Kyoto city was burnt(the late 1300’s). We called it the Nanbokucho war when the Japanese imperial court was separated into two. 

 Ryokai Yoshisda managed to escape and arrive in Kyushu island at Tsukushi Province (Today’s Fukuoka prefecture), looking for better opportunities. And, Yoshisada founded Tsukushi Ryokai school there. Among Japanese sword experts, Ryokai school in Tsukushi province is called Tsukushi Ryokai to distinguish it from the Ryokai school in Yamashiro province. Since the origin of this school came from Yamashiro province, the blades forged by the Tsukushi Ryokai school have characteristics of *Yamashiro Den tradition. Among Tsukushi Ryokai school, the swordsmiths were named with 能 (Yoshi) such as 家能 (Ieyoshi). Ryokai Ieyoshi (了戒家能) is one of the most prominent figures in Tsukushi Ryokai school. There was also a record of him residing in Echizen (Fukui prefecture) and Yamashiro (Kyoto prefecture).

*Yamashiro Den tradition is one of the five most famous traditions in terms of Japanese sword forging techniques and styles. Others are YAMATO, BIZEN, MINO, SOSHU traditions.

Based on the characteristic of the blade, NBTHK authenticated it a a Tachi blade. Tachi was mainly used by an armored Samurai with one hand on horseback from the Heian period (794-1185 A.D.) until the early Muromachi period. TACHI was suspended loosely on the left waist with its edge facing the ground so that you could draw it faster to cut down soldiers on the ground. It is stored in a Katana style Koshirae now.

  It is appraised as a Tokubetsu Hozon Token(特別保存刀剣) issued by NBTHK(Nihon Bijutsu Touken Hozon Kyokai:日本美術刀剣保存協会). This authentication paper was only given to authentic Japanese swords, especially well preserved and high quality with artistic value.

【 Blade】
Cutting Edge Length(Nagasa)72.0 cm ( 28.3 inches)
Curvature(Sori) 1.2 cm ( 0.47 inches)


The crystalline structure which forms along the cutting edge of a blade as a result of the hardening process
visible steel surface pattern created by folding and hammering during forging process


NakagoNakago is the tang of the Japanese sword.

 Japanese swordsmiths left the black rust on the tang because it prevents red rust while the tang is in its handle. And the discoloration of the tang was created over time, and it is a great indicator for a Japanese sword specialist to estimate when the sword was forged.


Koshirae: Koshirae is the mounting of the Japanese sword. There are several parts that consist of Koshirae such as Saya(Scabbard), Tsuka(Handle), Tsuba(Handguard).


Fuchi-KashiraA pair of matching sword fittings that cover the upper and bottom parts of its sword hilt.

 These Fuchi and Kashira parts have different designs. The surface of Fuchi is decorated with the Nanako-Ji (魚子地) technique. By hitting the Nanako-Ji Tagane (魚子地鏨, chisel used for this technique), delicate fish egg-shaped protrusions are made, as seen on this work. The exact size particles are placed at equal intervals without gaps; it shows its maker’s expert skill and enhances the decorativeness of the entire handle.

 On the other hand, the Kasira part is designed with a straight-line pattern. A small protrusion is on the top, and a linear pattern is applied radially around it. Its rounded shape coupled with this linear pattern makes an appearance that seems to be a Kabuto (兜, Samurai helmet) view from directly above.

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

 The dragon is the motif of this Menuki. It expresses the majestic figures of dragons that twist their slender bodies and look back to intimidate their surroundings. You could see themm from the gaps of the Tsukamaki thread. The golden paint is applied to these dragons, and this coloring remains in good condition.

 Initially, the dragon was an imaginary creature found in ancient foreign traditions or myths. Furthermore, it is regarded as a symbol of auspicious signs. Its body is likened to nine animals: antlers are deer, the head is a camel, eyes are demons, the neck is a snake, the belly is the Mizuchi (蛟, a mythical animal in Japan that looks like a snake and has a horn and four legs), scales are fish, claws are falcons, palms are tigers, and ears are cows. It was thought that the dragon would reign at the top of all animals because of its odd-looking appearance. We often find the dragon design in sword mountings. It shows that lots of Samurai favored this dignified beast motif.

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. 

 Yotsu-Mokkou-shaped iron Tsuba that has Kozuka and Kougai holes. Its edge is thicker than the others, giving it a sturdy build.

 About the design, a continuous geometric pattern is engraved on this Tsuba. This pattern is called the Higaki (檜垣, a fence made of thin cypress boards with wickerwork) or Ajiro (網代). A continuous pattern in which rows of oblique right and left rectangles are alternately combined. The intersection angle is not a right angle, and the rectangle sometimes becomes a parallelogram. It is used for dyeing and weaving tint patterns, and is also seen in bamboo works. The Ajiro is a wickerwork trap, fishing gear made of bamboo instead of a net. Therefore, this design represents a large catch. Also, some people believed it would exorcize evil spirits. At first glance, it looks like a kind of beautiful geometric pattern, but in reality, it might have been designed on this Tsuba with these meanings in mind.

Saya Saya is the scabbard for the Japanese sword.  

* Please keep in mind that there are a few scratches. If you like to see the detailed condition, please feel free to contact us.

Authentication PaperNBTHK TOKUBETSU Hozon Certificate for the blade (No. 1017343)

  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 Mar. 2nd in the 4th year of Reiwa (2022). They appraised it as Tokubetsu Hozon Touken, the blade especially worth preserving for Japanese society. The purchaser will receive this original certificate as well. We can also translate what is written into English and make a PDF file for your record if you request.

Registration Number : Osaka 10831

 The Board of Education in Osaka prefecture issued a registration paper for this sword . It is called Jyu Token Rui Torokusho(銃刀剣類登録証). Bunkacho(The Agency for Cultural Affairs) acknowledges a Japanese sword with this paper as a work of art.
The sword needs to be traditionally hand-forged and made of Tamahagane carbon steel to be registered in the system. With this paper, its owner in Japan can legally own an authentic Japanese sword. Based on this registration number, we will apply for its export permit.
This paper will need to be returned to the board of education when the sword is being shipped abroad, but you can receive a copy of it. An English translation of this registration paper is available on request.



【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.

 Here is one of the reviews we received from a customer who purchased an authentic Japanese sword from us. For more reviews, please click here.
“My experience overall with the whole process was wonderful. I had many questions about the history and process to purchase these treasures. All my questions were answered very timely and complete. The staff is very knowledgeable and very well versed if any questions do arise.”

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 500 Japanese swords for the past three years (~2023) 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. Also, you don’t need to make an account on Stripe for the checkout. 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, CAD,EUR CHF or GBP. The price is set in Japanese Yen. Prices in other currencies are automatically calculated based on the latest exchange rate. 

* If the amount is above 1 million JPY, Stripe or wire transfer will be the only options for payment.

 We have shipped authentic Japanese swords to the USA, UK, Canada, Mexico, Germany, Switzerland, France, Hong Kong and Australia. 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 EMS. 

 We normally ship by EMS(Express Mail Service) provided by Japan Post. 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 or other fee 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.

* If you live in Australia and like to purchase an authentic Japanese sword, please click here to know the detail.

*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.

【How To Contact Us】
 Please contact us through email, Facebook Messenger or Live Chat if you have any questions. You can find each icon on the right side of the website. Please click one of them to reach us. We will reply to you within 1-2 business days.

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. By mastering how to clean the Japanese sword, its aesthetic beauty will last forever.

 When you purchase a Japanese sword from us, you can get a Free Japanese sword maintenance kit. It comes with four tools(Choji Oil, Uchiko Whetstone Powder, Peg remover, Oil Applicator). By watching the video instruction above , you can enjoy learning how to maintain your Japanese sword while appreciating it. If  you have any difficulty assembling the sword or cleaning the blade, you can feel free to contact us.







 Thank you for reading all the information on the page. If you have any difficulty choosing the right Japanese sword for you, we will be more than happy to help you find the one that speaks to you the most. Please feel free to contact us.


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