What is a hamon, and which katanas in this collection have one?

A hamon is the visible temper line that runs along the cutting edge of a clay-tempered blade. During the tempering process, a layer of clay is applied to the spine of the blade before quenching; the clay-covered spine cools more slowly and remains softer, while the exposed edge cools rapidly and hardens. The boundary between these two zones appears as a misty or crystalline line — the hamon — when the blade is polished. In this collection, the 1065 carbon steel katana and the T10 folded clay-tempered katana both feature real hamon produced through this traditional process. Damascus steel blades in this collection undergo clay tempering as well, producing a hamon that interacts visually with the layered grain pattern. A genuine hamon is distinct from an acid-etched imitation line sometimes found on lower-cost swords.

What should I know about caring for a carbon steel katana display piece?

Carbon steel — including 1045, 1060, 1065, and T10 grades — is susceptible to oxidation if left unprotected. For display and storage, apply a thin, even coat of choji oil (traditional clove-based sword oil) or a food-grade mineral oil to the blade surface every two to three months, or more frequently in humid climates. When handling the blade, use clean cotton gloves or avoid touching the polished surface directly, as skin oils accelerate surface rust. Store the katana horizontally on a sword stand, or vertically in its saya with the edge facing upward in the traditional Japanese manner. Avoid sealed display cases without humidity control, as trapped moisture is a common cause of rust on stored blades. A silica gel packet placed near the storage area helps regulate moisture effectively.

What is the best way to display and preserve a rose gold katana?

Horizontal katana stands (known as katanakake) are the most traditional display method and keep the blade safely cradled with the edge facing upward, which prevents the cutting edge from resting against a hard surface. Position the stand away from direct sunlight, as prolonged UV exposure can fade ito wrap colors and dull metallic finishes over time. Humidity is the primary enemy of carbon steel, so maintaining indoor relative humidity between 40–55 percent is ideal. Apply a thin coat of choji oil (clove oil) or a quality camellia oil to the blade every four to six weeks using a soft cotton cloth, wiping in one direction from spine to edge. For the rose gold fittings and saya, a dry microfiber cloth removes fingerprints without scratching the finish. Avoid silicone-based polishes, which can leave residue that traps moisture against metal surfaces.

What makes T10 steel well-suited for collectible katana?

T10 is a high-carbon tool steel with approximately 1.0% carbon content, which gives it excellent hardness potential and fine grain structure when properly heat-treated. What sets it apart for collectible katana is its strong response to clay tempering — the traditional Japanese technique where clay is applied to the blade before quenching to create differential hardness. The result is a genuine hamon, the visible temper line that runs along the blade's surface, formed through the actual metallurgical process rather than simulated by acid etching. For display collectors, this means each blade carries a naturally unique hamon pattern, since the crystalline boundary that forms during quenching is never exactly the same twice. T10 also takes a fine polish well, which allows that hamon activity — the nie and nioi along the temper line — to be clearly appreciated under raking light.

What is the best way to display a Muichiro Sword at home?

Updated Mar 2026

A horizontal two-tier katana stand is the most popular display method and allows the blade and scabbard to be shown simultaneously - blade on the upper tier, saya on the lower. For wall mounting, a horizontal bracket set at eye level creates a gallery-style presentation that highlights the sword's full profile. Whichever method you choose, keep the display away from direct sunlight, which can fade the tsuka-ito (handle wrapping) and alter the blade's finish over time. Apply a thin coat of camellia oil to the blade every two to three months using a soft cloth, wiping from the spine toward the edge rather than along it. This simple routine preserves the steel's appearance and prevents any surface oxidation common in humid or coastal environments.