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Updated: 20 Apr 2024

SOLD

Modern Japanese Sword Katana Signed by Gassan Sadakatsu
NBTHK Tokubetsu Hozon Certificate

$18,112.19

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

SHIPPING TO :
USA, UK, Canada, Mexico, 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 Katana (Gendaito)
Age 9th year of the Taisho era (1920)
Swordsmith Osaka Jyu Gassan Minamoto Sadakatsu (大阪住月山源貞勝)
Certificate NBTHK Tokubetsu Hozon Certificate
Location Osaka
Blade Size Cutting Edge Length: 66.9 cm( 26.3 inches)
Curvature: 1.51
cm( 0.59 inches)

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

SOLD

Modern Japanese Sword Katana Signed by Gassan Sadakatsu with Tokubetsu Hozon Certificate 

【Description】

Summary 

This blade was signed by Osaka Jyunin Gassan Sadakatsu (大阪住月山貞勝) in Nov the 9th year of the Taisho era (1920). Osaka Jyu means that he lived in Osaka when he forged this blade. Gassan is the name of a prestigious school. 

 Gassan Sadakatsu was born in Osaka in the second year of the Meiji era (1869) as the son of Gassan Sadakazu and grandson of Gassan Sadayoshi, two of the most famous swordsmiths during the late Edo-early Meiji period. Sadakatsu learned sword-forging techniques from his father in his childhood. You can barely find the blades signed by him before the 7th year of the Taisho era (1918) because he dedicated himself to assisting his father. In that sense, this blade is very rare one. From the 10th year of the Taiso era (1920), his craftsmanship was highly recognized by Ichiki Kitokuro, Minister of the Imperial House. And, Sadakatsu was assigned to forge blades for the imperial family members. Sadakatsu also forged many blades for the Japanese navy/army generals. 

 After his father, Gassan Sadakazu, deceased, Sadakatsu took over Gassan school and trained many skilled apprentices. Gassan Sadakazu, his third son, and Takahashi Sadatugu, his apprentice, became the national treasures of Japan in their career. Sadakatsu died on December 24th, 1943.

Gassan School

 Gassan is the name of the school he belonged to. It was initially founded during the Heian period(late 12th century). It is said that the school name “Gassan” (月山) came from the fact that they forged swords near the mountain called Gassan in Dewakoku.

Gassan Sadakazu (His father) & Gassan Sadayoshi (His grandfather)

 Sadakazu was born as the son of the Tsukamoto family in Omi province(today’s Shiga prefecture) in 1836. Sadakazu was adopted by Gassan Sadayoshi(月山貞吉), one of the most famous swordsmiths in Osaka prefecture when he was seven years. Sadakazu started his training under Gassan Sadayoshi when he was 11 years old. And at incredible speed, he was able to master a lot of complex techniques. According to available records, his first blade was created in 1851 when he was 16 years old.

 Gassan Sadayoshi founded Gassan school in Osaka in 1833. While Gassan school had been known as one of the most prestigious schools from the Kamakura period(late 12th century), its presence faded in the early-mid Edo period. However, after Sadayoshi became a highly-regarded swordsmith at the end of the Edo period, the whole school flourished again because of his continuous effort and superb craftsmanship.

 Gassan Sadakazu supported Sadayoshi, and they spent many years researching traditional Gassan-style swords and finally made Ayasugihada, the signature design of Gassan school. Ayasguhihada looks undulating grain pattern in the Jihada(steel surface), which resembles a Japanese cedar grain. Sadakatsu also mastered creating Ayasugiha and you can see this grain pattern on this blade.

Horimono (Engraving)

A dragon is beautifully engraved on one side. 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, 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. And, the other side shows  (梵字, Sanskrit letter)。

 

 This blade 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 is partial chip near the Monouchi area slight below the tip of the blade. If you don’t mind waiting, we will have this part polished without any additional fee so that the chipped part will be much less noticeable. Also, please keep in mind that there are a couple of partial black rust on the Mune (backbone of the blade).

 

【 Blade】
Cutting Edge Length(Nagasa)66.9 cm( 26.3 inches)
Curvature(Sori) 1.51 cm( 0.59 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



Kissaki: Kissaki 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.

 The same golden circled marks are designed on this Fuchi Kashira. We believe it is a family crest that is called the Maru-ni Igeta (丸に井桁) pattern or the Maru-ni Sumitate Idutsu (丸に隅立て井筒). The Idutsu (井筒)/Igeta (井桁) crest is a family crest with a well motif. The well-shaped wooden structure surrounding the above-ground part of the well is called the Igeta, and the circular one is called Izutsu. In the family crests, the square one is called the Izutsu, and the diamond-shaped one is called the Igeta. A well is a crucial place filled with water and should not be polluted. In other words, it is thought that it came to be used as a family crest because it is indispensable for life. A theory says the simplicity of this motif was favored among Samurai families.


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

 The Kurikara-ken (倶利伽羅剣) is the motif of this Menuki. Golden paint is applied to each Menuki, and this bright coloring adds decorativeness to the works. This blade was named after its appearance that Kurikara Ryu-O (倶利伽羅龍王, dragon) is winding around the sword. The Fudo Myo-O (不動明王, acalanātha) holds the Kurikara-Ken in his right hand. According to a theory, it is the incarnation of Dainichi Nyorai (大日如来, Mahāvairocana, the principal image of esoteric Buddhism). He is making a brave appearance to save the unsalvageable who are covered in worldly desires and to cut off the evil hearts that obstruct the path of Buddhism. It is believed that the Kurikara-Ken could cut off worldly desires: Sandoku (三毒). Sandoku is the three fundamental human desires: Ton (貪, greed), Jin (瞋, anger, grudge), and Chi (癡, delusion, complaint).

   
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. 

 The same as other metal fittings of this Koshirae, the dragons are the theme of this Tsuba. You would find the figures of two dragons are engraved. It seems they are chasing a Houju (宝珠, ball fulfills desires). And this jewel is engraved between their faces. Initially, dragons were imaginary creatures found in ancient foreign traditions and 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 dragons would reign at the top of all animals because of their odd-looking appearance.

Saya Saya is the scabbard for the Japanese sword.  

Authentication PaperNBTHK TOKUBETSU Hozon Certificate for the blade (No. 1021711)

  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 Dec 15th in the 5th year of Reiwa (2023). 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 20271

 The Board of Education in Tokyo 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.

 

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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, UK, Canada, Mexico, Germany, France, Hong Kong, Finland 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.

【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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