Manganese Steel Katana with Hamon in Teal Ito, Chrysanthemum Tsuba & Black Lacquer Saya

The 28.74-inch manganese steel blade is the centerpiece of this collectible katana, ground and hand-finished to a hardness of 62 HRC. A clearly defined hamon line runs along the shinogi-ji, produced through the tempering process and visible under light as a flowing wave pattern - a hallmark of traditionally styled Japanese swordsmithing. The chrome-finished blade surface highlights the hamon's contrast against the polished steel, giving the nagasa a refined, display-worthy appearance. For those drawn to Japanese Long Sword construction, this blade's full tang build ensures structural integrity from tip to pommel.

The tsuka measures 10.62 inches and is wrapped in teal silk ito over a foundation of genuine black rayskin (samegawa). The tight, diamond-pattern wrap creates evenly spaced menuki pockets and a comfortable two-handed grip. The real rayskin base provides both tactile texture and a traditional aesthetic layer beneath the ito - an authentic detail that separates this build from synthetic alternatives.

The tsuba is cast from brown alloy in a chrysanthemum theme, with gold and silver gilding applied to the floral relief patterns. The rounded form and warm copper-brown tone create a strong visual anchor between the teal handle and the polished blade. The habaki and seppa fittings are finished in a complementary gold tone, visible in detail shots and adding cohesion to the overall koshirae assembly.

The saya is shaped from hardwood and finished in a matte black lacquer, measuring 29.92 inches. The upper section is wrapped in pearl rayskin, adding a luminescent contrast to the deep black ground. Real horn is used for both the koiguchi (mouth of the saya) and kojiri (tip cap), materials chosen for their durability and period-appropriate character. A teal sageo cord is knotted at the kurigata, echoing the handle ito and pulling the full teal-and-black color palette together.

Overall dimensions place this katana at 40.55 inches in total length, weighing 2.8 lbs - proportioned for wall display or koshirae study. The koshirae-style construction, combining real rayskin, horn fittings, gilded tsuba, and lacquered hardwood saya, makes this piece a well-considered collectible for enthusiasts of classical Japanese sword furniture.