Antique Japanese Sword Katana Signed by Yasutsuna with Hozon Certificate
This blade was signed by Kii Koku Yasutsuna(紀伊国康綱), who belonged to Kishu Ishido school. He was active in sword-forging during the Kanbun era(early Edo period: 1661-1673). He was an apprentice of the first-gen Bitchu no Kami Tachibana Yasuhiro.
Kii koku is the name of the province located in Wakayama prefecture today. He is known as one of the most famous swordsmiths from the Kishu Ishido school during the early Edo period. There was also a record of Yasutsuna forging in Osaka.
Ishido school was initially founded by Sukenaga, an offspring of Ichimonji Sukemune, who had created Fukuoka Ichimonji school in Bizen province(Today’s Okayama prefecture).
During 1492-1501(Mid Muromachi period), Sukenaga and his school moved from Bizen province to Omi province after being summoned by Gamou family, a powerful feudal line in that region. Sukenaga started to live in front of Ishido temple, and he changed his surname to Ishido. It was common for a swordsmith to name add where he lived to his maker’s name back then.
As of the early Edo period, many Ishido swordsmiths in Omi province moved to other parts of Japan. There are four major branches: Edo, Osaka, Kishu(Wakayama prefecture), and Chikuzen(Fukuoka prefecture). Omi Ishido school was the origin of whole other Ishido branches that flourished during the Edo period.
Following this trend, Bitchu no Kami Tachibana Yasuhiro, the master of Yasutsuna, moved to Kishu province from Omi province. It is said that Yasuhiro was the founder of Kishu Ishido school. Yasutsuna and his master forged swords near Wakayama castle in Kishu province. Judging from the fact that Yasutsuna worked for this skilled master, his craftsmanship must also have been excellent.
This blade is appraised as a Hozon Token(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 with artistic value.
Cutting Edge Length(Nagasa)：69.6 cm( 27.4 inches)
Curvature(Sori)： 2.1 cm(0.82 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.
This Fuchi Kashira has glossy black color. It does not have any ornamental decorations such as gold or silver inlay. However, the color of the material itself is beautiful, and it goes well with the texture of the Tsukamaki thread (thread of the handle). Although there are minor damages due to aging or its history, we hope you would enjoy these conditions as a part of this sword’s story.
Tsuka and Menuki：Tsuka is the handle of the Japanese sword and Menuki is its decoration.
It is challenging to judge the motif of this Menuki. Seeing its shape through the gaps of the Tsukamaki thread, its gold part looks similar to a hangar. However, the black ring-shaped objects are wrapped around it. That is why it is not easy to determine what kind of tool this is. It might be a tool that was once used in daily life or used in a specific situation.
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.
Futatsu-Mokkou-shaped Tsuba is made from iron. The origin of the Mokkou (木瓜) shape is a shape of eggs that are rest in a nest. When a quince (it is written 木瓜 in Japanese) is cut into round slices, its cross-section looks similar to this shape; therefore, it was named Mokkougata Tsuba. Yotsu-Mokkougata (a combination of four Mokkou shapes) Tsuba is often seen. There are also other types of Mokkou-shaped Tsuba such as Futatsu-Mokkou (二ツ木瓜, two Mokkou), Mitsu-Mokkou (三ツ木瓜, three Mokkou), and Itsutsu-Mokkou (五ツ木瓜, five Mokkou) etcetera. And this work is categorized into two Mokkou shape, as mentioned above.
Very shallow, but a kind of plant patterns are engraved on the surface. It is hard to see on the screen, so please enjoy it by looking at it directly if it is you, who own this sword next.
Saya： Saya is the scabbard for the Japanese sword.
Authentication Paper：NBTHK Hozon Certificate
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 Feb 25th in the 31st year of Heisei (2019). 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 : Okayama 126511
The Board of Education in Okayama 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.
【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 350 Japanese swords 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, EUR or GBP. The price is set in Japanese Yen. Prices in other currencies are automatically calculated based on the latest exchange rate.
We have shipped authentic Japanese swords to the USA, Canada, Mexico, UK, Germany , France and Hong Kong. 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 either EMS or FedEx(Canada).
We normally ship by EMS(Express Mail Service) provided by Japan Post. When we receive an order from Canada we will use FedEx instead as EMS temporarily stops shipping from Japan to those countries due to COVID-19.
We will send you a tracking number for your order as soon as we hand it to the post office/FedEx. 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.
*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】
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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 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 Powder, Peg remover, Oil Applicator). By watching the video instruction above , you can enjoy learning how to maintain your Japanese sword while appreciating it.