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Updated: 20 Jan 2025

Antique Japanese Sword Katana Attributed to Den Rai Kunitsugu
NBTHK Tokubetsu Hozon Certificate

$33,262.94

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

SHIPPING TO :
USA, Canada, Mexico, Germany, Belgium, France, Finland, Hong Kong, Australia
*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 (KOTO)
Age Estimated the early Nambokucho period (around the early 14th century)
Swordsmith Attributed to Den Rai Kunitsyugu (伝来国次: Unsigned)
Certificate NBTHK Tokubetsu Hozon Certificate
Location Yamashiro province (Today’s Kyoto prefecture)
Blade Size Cutting Edge Length: 71.3 cm (28.0 inches)
Curvature: 2.3 cm (0.9 inches)

More photos& videos available on request. Please feel free to contact us. 

In stock

Antique Japanese Sword Katana Attributed to Den Rai Kunitsugu with Tokubetsu Hozon Certificate 

【Description】

 This blade is attributed to Den Rai Kunitsyugu (伝来国次), a renowned swordsmith who was active during the early Nambokucho period (around early 14th century) in Yamashiro province (today’s Kyoto prefecture).

 He belonged to Rai school, a representative school of Yamashiro blades founded by Rai Kuniyuki (来国行). The swordsmiths of this school preceded their names with the character “Rai” (来). Rai Kunitsugu is said to have been an apprentice of Rai Kunitoshi (来国俊) or a cousin of Rai Kunimitsu (来国光), both of whom are renowned swordsmiths throughout Samurai history.

 Later, Kunitsugu moved to Kamakura, an area located in today’s Kanagawa prefecture, and learned the excellent craftsmanship from Masamune, who is arguably one of the most famous swordsmiths in Japan and said to be the actual founder of Soshu Den tradition. Kunitsugu was one of the top ten apprentices of Masamune, also known as Masamune Jittetsu (正宗十哲). And Kunitsugu became a master craftsman known as “Kamakura Rai” (鎌倉来). The most significant characteristic of Kunitsugu’s style is the strong influence of Soshu Den. Kunitsugu’s craftsmanship has been regarded as excellent and he is listed as Koto Saijosaku (grandmaster swordsmith of Koto blades).

 

Soshu Den

 Swordsmiths residing in Soshu province (Today’s Kanagawa prefecture) used a particular sword-forging tradition called Soshu Den. And, Shimada school also used this tradition to forge blades. Shoshu Den was born in the middle of the Kamakura period (mid 13th century). Back then, the Yamato and Yamashiro traditions were highly developed, and there were a few renowned swordsmiths from those regions. However, the sword-forging practice was in its infancy in the Kanto area, where the Soshu region was located.

 At the beginning of the Kamakura government, which was established in 1185, the first Shogun, Minamoto Yoritomo, prioritized making a lot of rules to have its political stability. And he couldn’t afford to hire swordsmiths within the same region or train them. Therefore, the Kamakura government originally ordered weapons to the swordsmiths in the other areas, such as Yamato and Yamashiro.

 But, since the government was established, the demand for weapons increased exponentially in the government, and they had to figure out how to meet those demands from Samurai who served Kamakura shogunate. Then, the 5th head of the Shogun, Hojo Tokiyori, invited two renowned swordsmiths from other parts of Japan. They were Awataguchi Kunitsuna from Yamashiro province and Bizen Saburo Kunimune from Bizen province. And the 7th-gen Shogun Koreyasu Shino also invited Fukuoka Ichimonji Sukezane from Bizen province.

 It is said that those three swordsmiths played an essential role in creating the Soshu Den and making the foundation of the Soshu Den. Also another famous figure in the Soshu den is Intou Kunimitsu, an adopted son of Awataguchi Knitsuna. And Kunimitsu passed his excellent craftsmanship to Yukimitsu, his apprentice. And Masamune, one of the most famous swordsmiths in Japanese history, was an apprentice of Yukimitsu.  And Masamune was the one that brought Shoshuden to nationwide fame. The tradition Masamune completed became an example of other swordsmiths who learned Soshu Den. Also, Soshu Den influenced many renowned swordsmiths during the Koto- Shinto era. One of examples is Inoue Shinkai from Osaka and Suishinshi Masahide from Edo.

 

 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.

 

*Please keep in mind that there are a couple of Kitae Kizu on the blade. If you like to know the detailed condition, please feel free to contact us.

 

【Blade】
Cutting Edge Length(Nagasa)71.3 cm (28.0 inches)
Curvature(Sori)2.3 cm (0.9 inches)


 

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



KissakiKissaki is the tip of the Japanese sword. 

 

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.

 On the Fuchi part, a dragon (龍, Ryu) flying through clouds is depicted. The combination of a dragon and clouds, called the Unryu Zu (雲龍図), is a classical and common motif. Initially, dragons were imaginary creatures found in ancient foreign traditions or myths. Furthermore, it is regarded as a symbolic beast 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.

 About the cloud pattern, clouds bring blessed rain and snow, and their movements significantly affect the day’s weather. Due to its supernatural power, a theory says that gods, spirits, and dragons dwell in the clouds. In Japan, there is a belief that worships dragons as water gods. Since rice cultivation has flourished in this country, people always treat water as an essential resource. It might be one of the reasons why the combination of dragon and clouds motifs is often seen even in sword mountings. We imagine some people wished for a plentiful harvest in the Unryu theme. From such a religious aspect, we could infer that dragon designs were familiar to people.

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

 The motif of this Menuki is also a dragon. Besides the description about a dragon as mentioned above, the dragon pattern was used for emperors’ clothing in ancient China so that people strictly defined its shape or even the number of nails. On the other hand, the dragon pattern does not have detailed rules to represent classes in Japan. However, still, it maintains its meaning as the all-purpose auspicious pattern. 

   

 

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. 

 Hana ikada (花筏, flower raft) is the theme of this Tsuba. Originally, the flower raft pattern represents the scattered petals of cherry blossoms floating on the surface of the water and flowing together like a raft. And it became a popular classic and elegant pattern from the Azuchi Momoyama period (1573-). The elegant appearance is still popular today, especially when the cherry blossoms have fallen, and the surface of the river turns to be pink with petals. 

 This Tsuba depicts cherry petals and a raft more directly. Cherry blossom is one of the seasonal things of spring, and it has been loved for a long time in Japan. Its pattern is designed not only for sword mountings but also for Kimono (着物, traditional Japanese costume) or furnishings. One theory says that the god of grain exists in cherry blossoms. Therefore, this flower pattern has been treated as the symbol of a plentiful harvest. In ancient times, people held a traditional custom under cherry blossom trees to pray for a bumper year. It is said that this is the origin of the cherry blossom viewing picnic today.

Saya Saya is the scabbard for the Japanese sword.  

 Various autumn plants (秋草, Akikusa), such as Kiku (菊, chrysanthemum) and Kikyou (桔梗, Japanese bellflower), are beautifully depicted with the Makie (蒔絵) technique on this scabbard. The Makie is a typical Japanese lacquer art technique developed uniquely in Japan for about 1,200 years. Firstly, it needs to draw a picture with lacquer on the surface with a thin brush. Next, sprinkle the gold powder from above to show the pattern before the lacquer hardens. This technique makes a gorgeous and elegant look to works. 

 Kiku is one of the flowers that symbolizes fall, and people appreciate it very much since ancient times. It is said that this flower was used as a medicine for obtaining a long life in China a long time ago, and it was brought to Japan with this thought in the Nara period (648-781). As its petals form radially, the chrysanthemum has been likened to the sun. That is why this flower pattern is treated as the symbol of perpetual youth and longevity or good health. “Kiku no Gomon (菊の御紋)” is a kind of chrysanthemum pattern, and it has been used as the crest of the Emperor and the royal family in Japan so that it is well-known as a noble pattern. 

 Kikyou, depicted in the lower right side on the inside of the box, is a small star-shaped flower. It is said its root has medicinal efficacy. The Kikyou pattern has often been used as a motif of Tanka (短歌, a kind of traditional Japanese poem) and pictures since the Heian period (794-1185). Its name was initially “Kichikou,” and it changed to “Kikyou” with time. It is said this flower was used for fortune-telling in the old days. This action is called Kikkyou-wo Uranau (吉凶を占う) in Japanese. The word Kikkyou (吉凶, good or bad omen) was associated with this flower’s name. “Kichikou” was compared to the word “Kichi Kou (吉更),” which means further good fortune. That is why this flower pattern is treated as a good omen design.

Authentication PaperNBTHK TOKUBETSU Hozon Certificate for the blade (No. 1022354)

  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 February 21st in the 6th year of Reiwa (2024). 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 : Tokyo 326267

 The Board of Education in Tokyo issued a registration paper for this sword. It is called Jyu Hou Token Rui Torokusho (銃砲刀剣類登録証). 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.

 

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【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 700 Japanese swords for the past few years (~2024) 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.

【Shipping】
 We have shipped authentic Japanese swords to the USA, Canada, Mexico, Germany , Belgium, France, Finland, Hong Kong, 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.

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

【Review】
 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.”

【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.

 

MORE ANTIQUE JAPANESE SWORD FOR SALE

SWORDS WITHOUT CERTIFICATES FOR SALE

READ KATANA ARCHIVE ARTICLE(Episode1-8)

LEARN JAPANESE SWORD TERMINOLOGY

 

 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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