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Updated: 22 Feb 2024


Antique Japanese Sword Daisho Signed by Senjuin/Attributed to Mihara NBTHK Hozon Certificate


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

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

INCLUDED : NBTHK Hozon Certificate for Katan& Wakizashi , Koshirae Mounting×2, Shirasaya Case×2, Traditional Sword Carrying Case×2, Sword Maintenance Kit, Full Exportation Support

Category Katana& Wakizashi (KOTO)
Age Muromachi Period
Swordsmith Signed by Senjuin (千手院)/ Attributed to Mihara (三原: Unsigned)
Certificate NBTHK Hozon Certificate× 2
Location Mino Province (Today’s Gifu prefecture)/ Bingo province (Today’s Hiroshima prefecture)
Blade Size Cutting Edge Length: 68.9 cm ( 27.1 inches)
Curvature: 1.9 cm (0.75 inches)

Cutting Edge Length: 40.6 cm (16.0  inches)
Curvature: 0.45 cm (0.18 inches)



Antique Japanese Sword Daisho Signed by Senjuin/Attributed to Mihara with NBTHK Hozon Certificate 



 This blade was signed by Mino Senjuin (美濃千手院), which is one of the most famous schools during the late Nanbokucho-late Muromachi period (Mid 14th-Early 16th century) in Mino province (today’s Gifu prefecture). According to NBTHK that appraised this blade, it was approximately made during the mid-late Muromachi period (Late 15th-Early 16th century).

 The school was located in Akasaka village near Sekigahara, an essential hub for transportation and military bases from ancient times. It is said that the Mino Senjuin school was founded by Sensui (泉水), the son of Yamato Koku Senjuin Shigehiro. Yamato region was one of the most famous sites for sword-forging during the late Heian-Kamakura period. Sensui moved from Yamato (today’s Nara prefecture) to Akasaka village in Mino province during the Nanbokucho period. 

 There was a temple called Senjudo in Nara prefecture where Senju Kannon (Thousand arms) Budha statue was worshiped. And a group of swordsmiths who lived there was known as Senjuin (千手院). They belonged to Todaji temple. Senjuin School was founded by Yukinobu, who was the son of Yoshiyuki. Yukinonobu was originally a servant for Senjuin temple, a branch of Todaiji temple during the late Heian period (1086-1107), and eventually became an Okakae Kaji for the temple. 



 This blade is attributed to Mihara, a prestigious school in Bingo province (Today’s Hiroshima prefecture). According to recent studies, it is general knowledge that Mihara school was founded by Kokubunji Sukekuni (国分寺助国) in the late Kamakura period (Late13th century-Early 14th century). Two of the most prominent figures in this school are Mihara Masaie (三原正家) and his son, Masahiro (正広).

 Mihara school is divided into three categories in Japanese sword terminology depending on the period. When the blade is older than the Nanbokucho era(the 1300s), it is called Ko-Mihara (Old Mihara). And it is called Mihara for those who forged in the early-Mid Muromachi period. Finally, Sue-Mihara(Late Mihara) is used for the late Muromachi period. Based on the NBTHK appraisal of this blade, it was approximately forged during the  early-mid Muromachi period (Late 14th- Early 15th century). 

 In Bingo province, many lands were owned by politically powerful temples of the Yamato region (today’s Nara prefecture) from ancient times. And many Samurai formed military groups to protect those lands, being hired by temples. And quite a few swordsmiths moved from the Yamato region to the Bingo region to forge blades for those Samurai.

 It is said that the swordsmiths in Yamato region strongly influenced how swords were forged in the Bingo province because of the history above. The blades forged by Mihara school had distinctive characteristics of Yamato DEN, one of the five Japanese sword traditions (Gokaden).

 Bingo is located near the Chugoku Mountains, where iron sands, one of the essential materials for making Japanese swords, were abundant. This geological location contributed to the Mihara swordsmiths forging high-quality refined blades. We presume Bingo was quite active in sword-forging from ancient times.


What is Daisho?

 Daisho is a pair of two Japanese swords Samurai carried. During the Edo period, having Daisho in public places was considered social status for Samurai. Furthermore, Samurai were required to wear them under the law back then. Daisho is written as 大=Big and 小=Small. Dai part means Katana, and Sho part means Wakizashi. They have such a fancy appearance that we believe a high-ranked Samurai owned them. We are confident you would like this pair of Daisho Koshirae. 


This Katana and Wakizashi blades are appraised as Hozon Token(保存刀剣) . They were issued by NBTHK(Nihon Bijutsu Touken Hozon Kyokai:日本美術刀剣保存協会). These authentication papers were only given to authentic Japanese swords well preserved and high quality with artistic value.

*Please keep in mind that there are a few Kitae Kizu on the Katana and a couple of them on the Wakizashi. 


【 Blade】

Cutting Edge Length(Nagasa) 68.9 cm ( 27.1 inches)
Curvature(Sori) 1.9 cm (0.75 inches)

Cutting Edge Length(Nagasa)  40.6 cm (16.0  inches)
Curvature(Sori)0.45 cm (0.18 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(Sabbard), Tsuka( Handle), Tsuba(Handguard).

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

 Both Fuchi Kashiras were designed with the same theme. A Samurai riding a horse is engraved on each Kashira part, and the Fuchi parts depict the scenery of battle at the waterside. The Samurai on the back of a horse with bows and arrows has a terrifying expression, and it is a powerful expression that makes us feel as if they are about to jump out into the real world with the horse at any moment. The same thing is true for the Samurai warriors fighting on the waterfront, and this is also depicted so realistically that we could almost hear their voices and the sound of swords clashing. We would like to categorize these Fuchi Kashiras’ design themes in one of the Kassen Zu (合戦図).

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

 You would find the figure of an animal similar to a dog on the Menuki. We believe this animal is the Karajishis (唐獅子). The Shishi (獅子) means a lion in Japanese, and the Karajishi is a lion brought from the continent to Japan in the Toh period (唐, Tang dynasty, 618-907). The Karajishi typically has curly hair for its head, neck, body, and tail. A simplified pattern of this curly hair is carved as the body hair pattern of the Karajishi. In Buddhism, the Karajishi is regarded as a symbol of wisdom, and Monju Bosatu (文殊菩薩, Manjushri Bodhisattva) rides lions. According to a theory, the Karajishi is the origin of Komainu (狛犬, stone guardian dogs that exorcize evil spirits). It shows this beast motif has been familiar to Japanese people since ancient times.

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. 

 Initially, the dragon is an imaginary creature found in ancient Chinese 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, belly is Mizuchi (蛟, mythical animal in Japan which looks like a snake and have 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.

 Also, in Japan, there is a belief that worships dragon as a water god and is called Ryujin Shinkou (竜神信仰). Since rice cultivation flourished in this country, water is always an essential resource. Therefore, the dragon motif has been familiar to Japanese people since a long time ago.

Saya Saya is the scabbard for the Japanese sword.  

KozukaKozuka is a small knife stored in Kozuka Hitsu (groove of the sheath of the Japanese sword).

 You could see the figure of the sword and a dragon wrapped around its blade part. This motif is called the Kurikara (倶利伽羅) pattern. It is the sword that Fudo Myo-O (不動明王, acalanātha) holds with his right hand. It is believed that this sword could cut off worldly desires: Sandoku (三毒). The Sandoku is the three fundamental earthly desires; Ton (貪, greed), Jin (瞋, anger, grudge), and Chi (癡, delusion, complaint). Fudo Myo-O is one of the objects of worship in Buddhism. According to a theory, it is the incarnation of Dainichi Nyorai (大日如来, Mahāvairocana, the principal image of esoteric Buddhism). Because of its sturdy appearance, it came to be worshiped as a god of war and is said to have been worshiped by many Samurai.


Authentication PaperNBTHK Hozon Certificate for the Katana and Wakizashi (No.374253& No. 373621 ) 

 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 Katana on June 28th and Wakizashi on April 3rd in the 18th year of Heisei (2006). They appraised them as  Hozon Touken, the blade worth preserving for Japanese society. The purchaser will receive these original certificates as well. We can also translate what is written into English and make a PDF file for your record if you request. 

Registration Number : Tochigi 49585 -Tokyo 13816

 The Board of Education in Tochigi prefecture issued a registration paper for this Katana and Tokyo prefecture issued one for this Wakizashi blade . 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.

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, 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.

 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.







 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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    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.