'Black Night' Hand Forged Minamoto Katana in 1095 with a clay tempered blade.
This hand forged katana is clay tempered. This involves smearing clay on the blade during heating and quenching to offer a uniform hardness to the blade and remove weak points which can occur when the heating or quenching is less even. It also allows the smith, by placing the clay thicker on certain parts of the blade, to make the edge harder (thus more able to keep the famous razor sharp samurai edge) and the rest of the blade less hard but more able to absorb impact.
The hamon on this sword is real. There is no bohi (groove in the blade for weight reduction). The wooden handle is wrapped in genuine Stingray skin (Samekawa) before the traditional cotton handle wrapping (Tsukamaki). The pattern you see on the saya (sheath) is genuine sharkskin and the fittings are of buffalo horn. The sageo (or ‘ito’) – which is the material wrapped around the saya – is made of black silk. The wooden box, silk sleeve, cleaning kit and stand are included.