Manganese Steel Katana with Hamon, Gold Chrysanthemum Tsuba - Black Lacquer Saya with Gold Vine Pattern, Brown Ito

The 28.74-inch manganese steel blade is the structural centerpiece of this katana, ground to 62 HRC and finished with a visible hamon that traces the length of the edge. The differential hardening process produces the characteristic wavy temper line between the hardened edge and the softer spine, giving the blade both its distinctive visual signature and its layered structural character. The chrome-polished surface reflects cleanly against the dark spine, and the hand-finished tip comes to a precise, controlled point. At 1.259 inches wide and 0.275 inches at the spine, the geometry is classic shinogi-zukuri - ridge-line construction balanced for proportion and display.

The tsuka runs 10.62 inches and begins with a foundation of real rayskin - genuine samegawa dyed black - whose nodular surface texture provides grip and depth before the ito even begins. Brown cotton cord is then laced over it in the traditional hishi-gumi diamond pattern, the knots landing precisely at each menuki position. The result is a handle that feels layered and intentional, not simply wrapped. For collectors drawn to Flower Theme Blade Katana designs, the tsuka's warm brown tone sets up the color story carried through to the saya.

The tsuba is cast from gold-tone alloy in an open-work chrysanthemum motif - overlapping petals and circular bloom forms cut through the body of the guard, leaving negative space that lightens the visual weight while adding ornamental detail. The chrysanthemum is one of Japan's most enduring aristocratic symbols, and its use here gives the fitting a formal, classical character. The gold finish bridges the brown ito and the gilded saya artwork into a unified accent palette.

The black hardwood saya is lacquered matte and hand-decorated with a gold vine-and-leaf pattern that runs diagonally along the body. The botanical motif - rendered in warm gold against deep black - mirrors the chrysanthemum theme of the tsuba and creates visual continuity across the full koshirae. A copper-toned koiguchi accents the mouth of the saya, and the black sageo cord is knotted in a traditional wrap at the kurikata. At 29.92 inches, the saya proportionally fits the blade with minimal play. This piece sits comfortably alongside other Black Carbon Steel Katana designs for collectors building a coordinated display.

Overall length is 40.55 inches, weight is 2.8 lb, and the full tang construction carries through the handle from blade heel to pommel. The black, brown, and gold palette is consistent across every component - blade, wrap, tsuba, and saya - making this katana a cohesive collector piece suited for wall display, study, or as a centerpiece in a Japanese sword collection.