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Updated: 2 Oct 2022

Antique Kozuka
for Samurai Sword
with NBTHK Hozon Certificate (K-36)


Delivery Time: 5 – 14 DAYS
*Delivery may take longer, depending on countries or holiday seasons.

INCLUDED: Wooden box, NBTHK Hozon Certificate

Title: Kyo-Kinkou-style, Tango Sekku Zu

Signature: NO SIGNED
Age: Edo period
Material: Shakudou (赤銅, the mixture of copper and gold)

Size Thickness Weight
1.4cm×9.9cm 0.4cm 32g

You can enlarge all the photos to see the detail of the item.

In stock

SKU: K-36 Categories: , Tag:

Title: Kyo-Kinkou-style, Tango Sekku Zu

 This Kozuka is made from the Shakudou (赤銅). It has often been used for sword mountings due to its material properties. And it gives an elegant black color for the works as you see in this Kozuka. The surface of this Kozuka is decorated with the Nanako-Ji (魚子地) technique. It is made by hitting the Nanako-Ji Tagane (魚子地鏨, chisel used for this technique). As you see in this work, it makes delicate fish egg-shaped protrusions on the surface.

 The theme of this Kozuka’s design is the Tango Sekku Zu (端午節句図). The Tango-no Sekku (端午の節句) is one of the seasonal festivals. Especially, the Tango-no Sekku is generally regarded as the Boy’s Festival. Now, please focus on this Kozuka’s design. It seems it is the combination of two different types of leaves. The gold paint is applied to them and remains in good condition. We guess these leaves are probably the Shoubu (菖蒲, Japanese iris) leaves and the Kashiwa (柏, daimyo oak). Japanese iris, as its Japanese name “Shoubu (菖蒲)” has the same pronunciation as the word “Shoubu (尚武, respect for martial arts and military),” this flower has been treated as a plant related to this seasonal festival. Another theory says that the Tango-no Sekku comes from the Continent. It was once used for exorcising evil spirits because people have believed that the intense scent of Japanese iris would expel those things. In this way, a theory says the event that was held to exterminate evil was introduced to Japan and established.

 About the daimyo oak, there is a custom to eat the Kashiwa Mochi (柏餅, rice cake wrapped in a daimyo oak) on the Tango-no Sekku. This plant keeps its leaves even during the cold season and falls when sprouts come up. It is considered auspicious because it does not lose its roots until it is inherited, and it is said that eating sweets wrapped in a daimyo oak leaf wishes for the healthy growth of children.

 We hope this story will speak to you. We will be happy if it will be added in your great collection. Also, based on the meaning of this seasonal festival, we would say this is a good idea to give it as a gift for someone precious to you.

 This Kozuka is recognized by The Society for the Preservation of Japanese Art Swords, which is known as NBTHK.

 *As this item is an antique, please check each photo and ensure its condition.

What is Kozuka?
 Kozuka is the small knife stored in Kozuka Hitsu (groove of the sheath of the Japanese sword). Many Tsubas (handguard) have two holes to put Kozuka and Kougai (equipment for appearance) next to Nakagoana (a hole of the Tsuba to put sword), so that Samurai didn’t need to draw his sword out of the scabbard when he wanted to use Kozuka or Kougai. Initially, Samurai used it for cutting wood or attacking enemies in an emergency. It is said that Kozuka was used as a craft knife rather than a weapon.

 The decorative designs of Kozuka were more emphasized than its practical use in the Edo period when Samurai society enjoyed one of the most peaceful times. And there were many ornamental Kozuka and Kougai created by Japanese metalworkers.

Why is it that the sword mounting was important for Samurai?
 The sword mountings of the Japanese sword have many kinds of decorations such as handguards (Tsuba), sword hilt (Menuki), pommel (Fuchi Kashira). The Japanese sword worked as a weapon and as an object to show who he was. For example, it shows their personalities and beliefs. You could say that it is like decorations for smartphones today. We recommend you zoom in on the pictures of the sword fittings. When you do so, you can see the skill of Japanese metal engraving techniques. They are mainly made of iron and copper with inlays of gold, silver, and bronze. When it comes to handguard (Tsuba), each one has a different outline and weight. These sword fittings that have lived with Japanese swords of the same age might be worth as much as the Japanese swords. They are inconspicuous parts of the Japanese sword. Nevertheless, if you are knowledgeable or particular about it, you will become a connoisseur of the Samurai.

Authentication PaperNBTHK 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 Kozuka on Nov 26th in the first year of Reiwa (2019). They appraised it as Hozon Tousougu, the Kozuka 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.

【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.

【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. 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. 

【Shipping duration】
 We normally ship via EMS (Express Mail Service) provided by Japan Post. It usually takes at least 5-14 days to deliver the package after you place an order. We will use DHL instead for those who ordered from Canada or Australia as EMS temporarily stops shipping to these countries due to COVID-19. We offer Free International Shipping as long as we can ship your order by either EMS or DHL (Australia, Canada only). If you prefer other shipping carriers, please contact us.  

 We will inform you of the order’s tracking number via email. Please make sure you fill out your valid email address correctly. 

*Please keep in mind that due to the spread of COVID-19, there might be possible delays in delivery. If you like to make sure if EMS shipping is available to your country, please contact 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 Kozuka and we are prepared to use the best of our ability to serve you.


 Would you like see some more Kozuka for sale? Please check the link below. We hope you can find your favorite Kozuka.

In stock