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Updated: 28 Sep 2022


Modern Authentic Japanese Sword Shirasaya Katana Gendaito Signed by Yusuishin Sadayoshi


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

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

INCLUDED : Shirasaya Case, Traditional Sword Carrying Case , Sword Maintenance Kit, Full Exportation Support

Category Katana (GENDAITO)
Age 62th year of Showa era(1987)
Swordsmith Yusuishin Sadayoshi(湧水心貞吉)
Location Osaka prefecture
Blade Size Length: 73.0 cm( 28.7 inches)/Curvature: 1.6 cm( 0.63 inches)

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


Modern Japanese Sword Shirasaya Katana Gendaito Signed by Yusuishin Sadayoshi


Sadayoshi(貞吉) was born in Tokushima(one of Shikoku island) in 1908. After finishing his primary education, he left his hometown and started to work at an iron factory in Osaka.
In 1928, he started to work for Gassan Sadakatsu(月山貞勝) as an apprentice. His master’s father was Gassan Sadakazu(月山貞一), who was designated as a living national treasure in 1906. Sadayoshi started his career as a swordsmith by learning skills from one of the greatest swordsmiths.

He became an independent sword maker after his master’s death in 1943, moving to Mishima city in Shizuoka prefecture. He used special spring water coming from Mount Fuji to forge his swords. He called himself Yusuishi(A child of Spring Water) and signed this word before his signature(Sadayoshi).

Sadayoshi was excellent at forging Soshu-Den style swords There are so many great swordsmiths among Gassan school, but Sadayoshi was known as a specialist in forging and tempering.
Gassan school’s origin dates back to the Kamakura period and one of the oldest Japanese swords that even exists today.

He received awards in many exhibitions and was eventually designated as Mukansa swordsmith by NBTHK(Nihon Bijutsu Touken Hozon Kyokai). He left many great works until he died at the age of 92.

You can observe his outstanding craftsmanship from this blade and feel the vitality he had. He survived during world war Ⅱ and kept forging swords for the rest of his life.

*What is Mukansa swordsmith?
It is one of the most honorable titles a modern swordsmith could receive.
One with this title could submit his work to the Japanese sword exhibition held by NBTHK(Nihon Bijyutu Touken Hozon Kyokai) without being examined. In contrast, other sword makers need to pass a rigorous test to participate in this event. This fact also suggests he was a great swordsmith in modern times. There are only 39 Mukansa swordsmiths now since the exhibition started in 1955. This exhibition is held by NBTHK once a year, and modern swordsmiths compete for their craftsmanship there.

About Modern Swordsmith
 There are around 150-200 swordsmiths in Japan today. To legally produce Japanese swords, one needs to pass the national exam given by the Agency for Cultural Affairs(Bunka-Cho) and receive the license. Before taking the exam, one must finish his or her apprenticeship under a licensed master for more than five years.
 Those who practice Iaido(居合道) tend to use those modern swords, and there are modern Japanese sword collectors nationwide.
The modern Japanese sword makers are researching old ways to forge swords and trying to recreate ancient style swords. They are the ones who keep the tradition of Japanese history alive.


【Blade 】
Cutting Edge Length(Nagasa) 73.0 cm( 28.7 inches)
Curvature(Sori)1.8 cm( 0.70 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

【Other details】

NakagoNakago is the hilt of the Japanese sword.

Habaki Habaki is the equipment to make the blade not touch its scabbard inside. It prevents the blade from getting rusty and chipped. 

Registration Number : Osaka 131773
 The Board of Education in Osaka 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.


【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 300 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.

【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 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 , 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.

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.





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