What steel types are the o-naginata blades in this collection made from?

The o-naginata in this collection use T10 folded clay-tempered steel and Damascus pattern-welded steel. T10 is a high-carbon tool steel with a carbon content around 1.0 percent, which allows it to achieve a very hard edge zone through differential clay tempering while maintaining a tougher, more flexible spine. When clay-tempered, T10 produces a well-defined hamon - the visible line along the edge created by the boundary between the hardened edge zone and the unhardened body - that is clearly visible on a properly polished blade. Damascus steel in this context is pattern-welded steel made by forge-welding multiple steel types together and working the billet through twisting, folding, and drawing until the grain layers create flowing visual patterns revealed by acid etching. Both materials produce naginata blades with significant surface visual character and the weight and balance profile appropriate for a display collectible at this scale. The marble and dark finishes visible across the collection correspond to the surface treatment and finish of each specific blade.

Is a naginata a good first piece for someone new to Japanese blade collecting?

A naginata can be an outstanding entry point, particularly because its dramatic length and distinctive silhouette create immediate visual impact in any display setting. Clay tempered naginata also serve as excellent educational pieces: the visible hamon teaches newcomers about differential hardening, and the full-tang construction lets you study how blade, habaki, and tsuba fit together. That said, collectors should account for space requirements — a 118 cm piece needs a suitable wall or stand. Many enthusiasts begin with a naginata alongside a shorter blade like a wakizashi or shirasaya, which offers a point of comparison in terms of curvature, steel type, and fittings, building a well-rounded understanding of the craft from the start.

How should I store a lacquered saya naginata for long-term preservation?

Long-term storage of a lacquered saya naginata requires controlling three main factors: humidity, contact abrasion, and light exposure. Lacquered surfaces are sensitive to rapid humidity changes, which can cause the finish to craze or chip — maintaining a stable relative humidity between 45% and 55% is ideal. The blade itself should be lightly coated with a thin film of choji oil or a mineral-based blade oil before storage to prevent oxidation, particularly on high-carbon steels like T10. Avoid storing the piece in a sealed synthetic bag, which can trap moisture. For display, keep the naginata away from direct sunlight and halogen lighting, both of which can fade lacquer pigmentation over time. A horizontal wall mount or padded cabinet rack distributes weight evenly and prevents warping of the wooden haft.

How should I store and maintain a lacquered naginata display piece?

Lacquered saya should be kept away from prolonged direct sunlight, which can cause the finish to fade or crack over time. For the steel blade, apply a light coat of high-grade mineral oil or traditional choji oil every three to six months to prevent surface oxidation, especially in humid environments. When handling, use a soft cloth or cotton gloves to avoid transferring moisture and natural oils from your hands onto the blade or lacquer surface. Store horizontally or on a proper naginata stand rather than propped at steep angles, which can stress the handle joint over time. If the piece came with a bag or wrapping, keeping it covered when not on active display significantly extends the life of both the lacquerwork and the steel's surface condition.

How should I care for and store a bronze tsuba naginata long-term?

Updated Mar 2026

The blade and the bronze fittings each have different care needs. For the blade, apply a thin coat of choji oil (or a food-grade mineral oil substitute) every two to three months, spreading it evenly and wiping off any excess. This prevents surface oxidation on the carbon steel without attracting dust. For the bronze tsuba, the best approach is deliberate non-intervention — avoid metal polishes, which strip the patina, and simply wipe with a dry microfiber cloth if fingerprints accumulate. Store the naginata horizontally on a padded display rack, away from direct sunlight and humidity fluctuations, both of which can accelerate uneven patina development. Keep the saya on the blade when not displaying the bare piece to protect the polish.