Antique Japanese Sword Katana Signed by Nagahiro with NBTHK Koshu Tokubetsu Kicho Certificate
This blade was signed by Suo Koku Jyunin Nagahiro (周防国住人永弘) in August, the second year of the Keio era (1866: The end of the Edo period). The signature also says “彫同作,” meaning the same swordsmith created the engraving. Suo Koku is the name of the domain he lived in when he forged this blade. It is located in today’s Yamaguchi prefecture. Jyunin means the person who lives there.
He was an apprentice of Yokoyama Kaganosuke Sukenaga (横山加賀介祐永) first. He then moved to Suo Koku after mastering excellent craftsmanship from his master. He was active during 1860-1872. He was one of the most renowned swordsmiths in the Choshu region (Yamaguchi prefecture) during the late Edo period. He served Mori clan, a prestigious feudal line that lasted many generations.
His master (Yokoyama Kaganosuke Sukenaga)
Bizen Osafune Jyu Sukenaga(備前長船住祐永) is one of the most famous swordsmiths in Bizen province at the end of the Edo period(Bakumatsu). Born as the second son of Yokoyama Sukehira, he belonged to the Yokoyama school in Bizen province(today’s Okayama prefecture). He eventually became the head of this school. He called himself the 56th-gen of Tomonari, a renowned swordsmith in the mid-late Heian period in Bizen province. He received Kaganosuke, an honorable title in the fourth year of the Tenpo era (1833). He was allowed to inscribe a chrysanthemum emblem, which is the symbol of the Japanese emperor. His sword forging technique was so great that the emperor allowed him to use this emblem, which was respectable for any swordsmiths.
You can find the engraving of a Tsurugi (Double-edged blade) and dragon. This blade is Kurikaraken, which is the sword that Fudo Myo-O (不動明王, acalanātha) holds with his right hand. 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). Kurikara-ken was named after its appearance that Kurikara Ryu-O (倶利伽羅龍王, dragon) is winding around the sword. It is believed Kurikara-Ken could cut off worldly desires: Sandoku (三毒). Sandoku is the three fundamental human desires; Ton (貪, greed), Jin (瞋, anger, grudge), Chi (癡, delusion, complaint).
The dragon itself is also a popular theme for decorating the Japanese sword. In Japan, people appreciate the dragon design as an all-purpose auspicious pattern. The other side has the letter of Fudo Myo-o(不動明王）in Sanskrit. This god was also known as a god of wars. Samurai believed in the power of this god, so they put decorations of this god on either armor or samurai sword.
Cutting Edge Length(Nagasa)： 68.2 cm( 26.8 inches)
Curvature(Sori)： 0.9 cm( 0.35 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.
Horimono：Kurikara Ken and Dragon
Habaki：Habaki is the equipment to make the blade not touch its scabbard inside. It prevents the blade from getting rusty and chipped.
Authentication Paper：NBTHK Koshu TOKUBETSU Kicho Certificate for the blade
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 5th in the 53th year of Showa (1978). They appraised it as Koshu Tokubetsu Kicho Touken, an old form of the certificate. 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 314710
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.
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, CAD,EUR 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, Canada, Mexico, UK, Germany, Switzerland, 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 either EMS or FedEx(Canada).
We normally ship by EMS(Express Mail Service) provided by Japan Post. When we receive an order from the 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.
* 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.
【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.