#Terressens | Samurai & Katanas | Katana "Yain" (夜陰 in the shadow of night), Sushu Kitae

Exclusive #Terressens
Katana "Yain" (夜陰 in the shadow of night), Sushu Kitae, selective tempering, ito and dark blue sageo #Terressens

Katana "Yain" (夜陰 in the shadow of night), Sushu Kitae, selective tempering, ito and dark blue sageo

Sharp katana, Soshu Kitae forge (steels 1045 / 1060 / 1095), genuine temper line (hamon 刃文), hand-sharpened, with black scabbard (saya 鞘), koiguchi (鯉口), Kurigata (栗形) and Kojiri (鐺) in natural horn, delivered in a composite wood case containing a maintenance kit, lacquered stand and protective fabric cover


I blend into the night, the better to surprise and slash. My blade, whose misty wave denotes the secret of my manufacture, is made of three steels: soft at the core, hard and extra-hard at the surface. In the constant quest for perfection, the forge that created me uses this ancestral technique coupled with the use of clay to obtain the ideal combination of softness and hardness. The steel must be able to cut cleanly without dulling. Three natural horn elements give my saya exceptional longevity. For those who can hear my blade whistling through the air, it's already too late...

Reference n° 0575 - Shipped within 48 hours
850 € (free shipping)

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Director: Thibault Alignan, thibault.alignan@gmail.com

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Katana "Yain" (夜陰 in the shadow of night), Sushu Kitae, selective tempering, ito and dark blue sageo #Terressens

Metallurgy

Katana metallurgy glossary | Practical info #Terressens

Practical info #Terressens

Katana metallurgy glossary

Quick dictionary to help you choose the right katana: homogeneous steel, Maru, damascus, 1045, 1060, 1095, complex forging (Kobuse, Soshu Kitae, Shihomizue...), true tempering line, Hamon...

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"Sabres and signatures 1: an introduction to inscriptions on Japanese swords", Franz Baldauff


From the Xᵗʰ century onwards, Japanese blacksmiths began to sign their swords. It is precisely the presence of this signature that has enabled experts to draw up inventories and genealogies of blacksmiths, to attribute forging characteristics to groups or schools of craftsmen, and to write a History of the Japanese Sword. But much more than a simple mark, the signature is often accompanied by other information: honorific title, age, place and date of manufacture, type of steel used, name of sponsor or owner, result of a cutting test... This first volume outlines the general evolution of inscriptions and signatures on Japanese sword and saber weapons, from antiquity to the end of the XIXᵗʰ century. A chapter is also devoted to early documentary sources.
Publication date: 1ˢᵗ January 2017

► Buy the book (link paid by Amazon)

"Sabres and signatures 2: the blacksmith's inscriptions", Franz Baldauff


From the Xᵗʰ century onwards, Japanese blacksmiths began to sign their swords. It is precisely the presence of this signature that has enabled experts to draw up inventories and genealogies of blacksmiths, to attribute forging characteristics to groups or schools of craftsmen, and to write a History of the Japanese Sword. But much more than a simple mark, the signature is often accompanied by other information: honorific title, age, place and date of manufacture, type of steel used, name of the sponsor or owner, result of a cutting test... This second volume presents, by theme and with the help of numerous examples, this various information inscribed by the smiths themselves: professional name, personal name, family name, religious name, honorific titles, place names, date, age, genealogical indications, technical mentions, name of a patron, owner or collaborator, votive dedications, secret signs...
Publication date: 1ˢᵗ January 2019

► Buy the book (link paid by Amazon)

Technical

Manufacturing
. Soshu Kitae forged throat blade: 1045, 1060 and 1095 steels (from core to surface), sharpened (perfectly suited to cutting practice)
. Hand sharpening
. Genuine hardening line (刃文 Hamon; selective hardening).
. Through silk (end 3 cm from kashira 頭) .
. Two pegs (Mekugi 目釘) .
. Handle (tsuka 柄): shagreen (Same 鮫肌, ray skin) covered with midnight-blue cotton ito.
. Guard (tsuba 鍔) : aged cast metal (motif : Mount Fuji / samurai and cherry tree branches)
. Scabbard (saya 鞘) : varnished wood.
. Koiguchi (鯉口), Kurigata (栗形) and Kojiri (鐺) : natural black horn (variable color) .

Features
. Blade length (nagasa 長さ): 70.5 cm (balance point 12 cm from tsuba)
. Curvature (Sori 反り): 20 mm / Torii-Sori (symmetrical)
. Thickness (Kassane): 6.7 / 4.2 mm
. Total length: 102 cm
. Tsuba: 7 x 7.5 cm
. Tsuka: 26.5 cm
Back of blade (mune): Hikushi . Mune (棟) : Hikushi

Weight (approx.) :
. Katana : 975 g
. Saya : 250 g

Packaging
Composite wood box (9 x 15 x 110 cm) containing maintenance kit, lacquered stand (one place) and protective fabric cover.

Maintenance
Blade protection: clean blade and apply a film of oil regularly to prevent oxidation (rust).
Maintenance to be carried out after each cutting training session or monthly without use (see below).

Core steel: 1045
Steel on wire: 1095
Surface steel: 1060
Forge: Soshu Kitae
Hardening: differential
Sharpening: manual

📌 Also read: katana metallurgy glossary

Maintenance kit

Maintenance kit for katana (shinken) blade #Terressens

Maintenance of a sword or saber is necessary to prevent oxidation (rust). Old oil must be removed and replaced by a film of new oil. The maintenance kit is composed of several elements:
Microfiber cloth: for cleaning, spreading oil and polishing the blade.
Uchiko: a ball of finely ground chalk (chalk powder) wrapped in a ball of cloth. Intended for cleaning the blade's surface, the powder passes through the wrapping when tapped, allowing it to be sprinkled over the blade's steel.
Oil: applied as a thin film, it protects against oxidation.
Mukugi(x 2): pins (bamboo dowels 目釘) that hold the blade and handle (tsuka 柄) together.
Pin driver (Mekugi Nuki): Small brass hammer with a screwed-in pin for removing mekugi.
Maintenance does not require disassembly, but if you need to remove the handle (tsuka 柄), replace the pins.

Figure 1: Cleaning the blade with a microfiber cloth
Figure 2: Tapping the Uchiko on the blade to deposit limestone powder
Handle with care to avoid injury.
1/ Use the microfiber cloth to remove oil from the blade. From the guard (Tsuba 鍔) to the tip (Kissaki 切先), slide the cleaning cloth over the back of the blade (Mune 棟), folding it in half to wrap both sides of the blade.
Lightly squeeze the cloth between thumb and forefinger to surround the blade from above (first illustration).
2/ Once the old oil has been removed, use the uchiko to lightly tap along the blade (second illustration).
3/ Use the cloth to lightly polish the blade and remove the powder, in the same direction as the first step (first illustration).
4/ Apply the oil along each side of the blade with the sprayer (or a very soft brush). The oil should be spread thinly and evenly, without excess (first illustration).
Be sure not to touch the blade before replacing it in its sheath (saya 鞘).
Clean the microfiber cloth with soapy water.

Legislation

Since September 6, 2013, new legal provisions stemming from the March 6, 2012 law have come into force. These new rules have strengthened criminal penalties against weapons offenders and introduced a new classification.
Katanas, swords, daggers and knives are now classified in category D. The purchase and possession of these weapons are unrestricted. In principle, they may not be carried or transported without legitimate reason. If transported, the weapon must not be "directly" usable. It must be securely packed in a case or container, preferably with a padlock or other protective system.
To find out more: Code de la sécurité intérieure on Legifrance

The sale of war materiel, weapons, ammunition and their components to minors is prohibited. Please remember to provide us with proof of your majority (identity card, passport) by e-mail to validate your order: studio@terressens.com. If we do not receive this document within 48 hours, your order will be cancelled and reimbursed in full.

To find out more, read our practical information sheet: "Is it legal to own a katana?

Customer reviews #Terressens received by SMS
Boris M. (February 2022)
I received the parcel. The items ²) are great. Thank you ☺️

Customer reviews #Terressens received by e-mail
Frédéric Le G. (November 2021)
Good evening,
I received the katana and it is beautiful,
Thank you for your excellent service.
Sincerely

See also

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Katana sharpened Damascus forge "Ketsueki" (血液, blood), red braiding

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Ref. 0573 (in stock) Ref. 0573 (out of stock)

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