T10 Carbon Steel Katana with Oni Tsuba in Dark Blue Lacquered Saya - White Ito

The blade on this katana is forged from T10 carbon steel and finished with a visible hamon line - the wavy temper pattern running along the edge is a hallmark of traditional Japanese sword construction. At 40.55 inches overall with a blade width of 1.259 inches, the geometry is faithful to classical katana proportions. The hand-finished surface shows natural variation in polish, with the edge carrying a refined sharpness that reflects the steel's character rather than a machine-buffed uniformity. For collectors drawn to Blue T10 Carbon Steel Katana designs, this piece represents the style with careful attention to blade detail.

The tsuka is built with full tang construction, meaning the steel runs the complete length of the handle for solid mechanical integrity. White rayskin (samegawa) wraps the wooden core beneath the ito, providing grip texture that the cotton wrap then follows in a diamond lozenge pattern. The result is a handle that feels intentional in hand at the sword's 2.8 lb weight. Ivory-toned menuki sit beneath the wrap, adding subtle dimension without interrupting the clean white aesthetic.

The tsuba is one of the most visually distinctive elements of this build. Cast in brown copper, it carries a full oni mask in relief - the gold-painted face shows raised brow lines, exaggerated cheekbones, and an open fanged mouth rendered with genuine sculptural detail. This is not a stamped generic guard; the oni theme is executed with the kind of specificity that rewards close inspection.

The dark blue lacquered saya is finished in hardwood with a textured surface showing red speckle patterns distributed across the deep navy ground. A white sageo cord is tied at the koiguchi with a traditional loop and tassel finish, adding contrast against the dark saya. The koiguchi itself is fitted cleanly, and the overall scabbard construction carries the weight and finish expected of a proper koshirae assembly. Those interested in White Rayskin Handle Japanese Samurai Swords will find this piece a strong representative of the style.

Overall dimensions: 40.55 inches length, 1.259 inches blade width, 0.275 inches blade thickness, 2.8 lbs. Packaged at 42.9 x 3.9 x 3.5 inches with a shipping weight of 3.3 lbs. The complete koshirae-style mounting - oni tsuba, white ito, dark blue saya - makes this a coherent single-theme build rather than a mix of generic components. Sword stand not included.