Antique Japanese Sword Katana attributed to Sadatsuna with NBTHK Hozon Certificate
This blade is attributed to Sekishu Dewa Sadatsuna (石州出羽貞綱), who was active during the Bunna-Koo era (1352-1390: mid-late Nanbokucho period). The maker’s Sadatsuna lasted three generations and we believe NBTHK’s attribution was given to the first generation. Sekishu is the province located in today’s Shimane prefecture. And Dewa is the name of the village.
Sadatsuna was the son of the first-gen Naotsuna, one of the ten apprentices of Masamune. Masamune is one of the most famous swordsmiths in Japanese history. Those ten apprentices are called Masamune Jittesu (正宗十哲).
The first-gen Naotsuna, his father originally resided in Sagami province (today’s Kanagawa prefecture) to master OSHU DEN tradition from Masamune. Then, Naotsuna moved to Sekishu (Today’s Shimane prefecture). The maker’s name Naotsuna also lasted four generations.
When Sadatsuna was active in the Nanbokucho period, Japan was tumultuous because the imperial court was split into two sides(south and north). There were many conflicts, and many Samurai were deployed. And Sadatsuna must have dedicated himself to forging high-quality blades for those Samurai who fought in battles.
Sekishu is also known as Iwami koku and it was famous for producing the high-quality carbon steel for the Japanese sword. We presume Sadatsuna had easy access to this exceptionally great carbon steel to create his swords.
This blade is appraised as a Hozon Touken (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, well preserved and high quality with artistic value.
Cutting Edge Length (Nagasa): 64.5 cm ( 25.4 inches)
Curvature (Sori): 1.5 cm (0.59 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.
Nakago: Nakago 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-Kashira: A pair of matching sword fittings that cover the upper and bottom parts of its sword hilt.
The motifs of this Fuchi Kashiras are Hannya-no Men/Hannya (般若面/般若). It is a kind of Noh (能, a form of Japanese drama performed in masks and costumes) and is a mask of a vengeful spirit that expresses a woman’s jealousy and resentment. Therefore, a Hannya is a mask of a Kijo (鬼女, a monster that turned a human woman into a demon, a female demon). There are two long horns painted with gold on its forehead. On the top of the head, like other female masks such as Ko-Omote (小面), the hair is drawn on the left and right, but in the case of Hannya, the hair is disheveled to express a ferocious look. Artificial eyebrows (eyebrows drawn with eyebrow ink above the original eyebrows) are drawn on the forehead. The eyes beneath the furrowed eyebrows are golden, with a hole only for the pupil. The mouth opens wide, revealing upper and lower teeth fitted with metal fittings and two pairs of fangs. The characteristic feature of the Hannya mask is that the upper half has a sad expression with frowning eyebrows, while the lower half has a wide-open mouth expressing fierce anger. This kind of design is said to represent the dual nature of the demon woman’s heart, which is filled with anger and sadness.
Tsuka and Menuki: Tsuka is the handle of the Japanese sword and Menuki is its decoration.
The theme of this Menuki’s design is the Takaradukushi Zu (宝尽くし図). It is a combination of treasures; you would find various motifs on each Menuki. Some people believed these treasures would bring good fortune. Each item has a meaning; for example, what you would find on your left is probably a Kakure-Gasa (隠れ笠, hat that hides face) and a Kakure-Mino (隠れ蓑, straw raincoat). In addition, you could see the mallet on the right. This is the Uchide-no-Koduchi (打ち出の小槌, mallet of good luck).
The Kakure-Mino (隠れ蓑, straw raincoat) and the Kakure-Gasa (隠れ笠, hat that hides face) would protect us from danger or illness. The Uchide-no-Koduchi (打ち出の小槌, mallet of good luck) would fulfill one’s wish or defeat one’s enemy. It is well-known that the Daikokuten (大黒天, god of wealth), who is a member of the Shichifukujin (七福神, the Seven Gods of Good Fortune), brings this mallet. In this way, this Menuki’s motifs are good luck items.
Tsuba and Habaki: Tsuba 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.
Although its design is relatively simple, this Tsuba is characterized by large openwork carvings. Instead of gorgeous decorations such as gold and silver inlays, you could directly enjoy the texture and color of the iron material.
Saya: Saya is the scabbard for the Japanese sword.
*Please keep in mind that a part of lacquer is missing but we will have it repaired before shipping the sword.
Authentication Paper: NBTHK Hozon Certificate for the blade (No.3030062)
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 14th in the 4th year of Reiwa (2022). They appraised it as Hozon Touken, the blade 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: Kanagawa 45220
The Board of Education in Kanagawa 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.
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.
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 take 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.
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【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 a 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.