T10 Carbon Steel Katana with Real Hamon - Dark Blue Lacquer Saya, Black-Red Cord Handle

The blade on this katana is forged from T10 carbon steel and finished with a hand-polished surface that brings out a natural chrome-toned clarity. A real hamon line runs along the edge, the result of differential heat treatment applied during the tempering process - not an etched or painted effect. The hamon pattern has an irregular, wave-like character that reflects light distinctly from the flat of the blade. For collectors focused on steel and finish, this is the foundation of the piece.

The tsuka is built full-tang, with the steel extending the full length of the handle for structural integrity across the 41-inch overall length. The grip itself is wrapped in black cord over red ray-skin (samegawa), producing the tight diagonal black-and-red pattern visible in the image. The contrast is clean and intentional - the red samegawa shows through the cord gaps in a uniform, well-executed wrap.

The tsuba is a round iron fitting in a filigree open-work design with a gold-tone frame. It sits at the base of the tsuka alongside blue and red menuki accents - small decorative elements tucked beneath the cord that add color depth when the piece is examined up close. The overall fitting style follows traditional koshirae construction. If you're exploring more options in this material category, the Natural T10 Carbon Steel Katana collection offers additional configurations in the same steel.

The saya is the most visually distinctive element of this piece. Constructed from hardwood with a lacquer finish, the dark blue base coat is layered with irregular light blue and white veining in a marble-style pattern - giving the scabbard a deep, textured appearance that shifts under different lighting. A black sageo cord is attached with a braided knot at the koiguchi. The amber-toned kurikata fitting provides a warm contrast point against the blue lacquer. Collectors drawn to this color profile may also find relevant options in the Red Cord Handle Japanese Samurai Swords collection for complementary handle aesthetics.

Overall dimensions: 41 inches total length, 3 lbs. Shipping weight is 4 lbs in a 43 x 4 x 4 inch package. Sword stand or holder is not included.