Oroshigane Kobuse Katana Shirasaya with Nashiji-hada Grain and Choji-midare Hamon Koshirae iron) and finished with a

iron) and finished with a deep black patina (煮黒)

Forging Pattern (Hada 鍛肌): None (Modern monosteel

while polishing reveals a natural and flowing Gonome-Midare hamon (互目乱刃文) formed through clay tempering (覆土焼入れ)

Tsuba (Handguard 鍔): A mokko-gata tsuba（木瓜鍔） crafted from white copper（白銅） and finished in a traditional blackened patina（煮黒仕上げ / Nibu-iro）

forged from blackened iron（鉄地）

Oroshigane Kobuse Katana Shirasaya with Nashiji-hada Grain and Choji-midare Hamon Koshirae iron) and finished with aFolded Oroshigane Steel Shinken () Nashiji Choji Katana: TangGu () Oroshigane () Kobuse Blade () + TangGu () Shirasaya Koshirae () This blade is forged from in house refined Oroshigane (), using the Kobuse zukuri () construction. The folding process produces a refined Nashiji hada (), where shimmering grain textures resemble scattered pear skin particles under light. Polishing reveals an elegant Choji midare hamon (), its clove shaped undulations