A Shodai Ippô Katana (一峯)

Shôdai Ippô was the founder of the Ômi branch of the Ishidô school, active during the Kan’ei era (1624–1644) in the early Edo period – a transitional time when Tokugawa peace shifted swordmaking from battlefield utility to personal refinement. Swords by the first generation are rare; more commonly encountered are blades by his son Sasaki Ippô, making this piece highly collectible and a genuine pleasure to study.

This katana carries NBTHK Tokubetsu Hozon certification (certificate #120233, issued 1989) and presents a tight itame-hada with mokume, thick ji-nie, soft chikei, and a free-flowing gunome-chôji-midare hamon rich with sunagashi, kinsuji, ashi, yô, and tobiyaki. The bôshi shows a ko-maru return in Ichimonji style on the omote, and a hakikake flame on the ura. At 63.1cm, the blade is compact and powerful with graceful curvature and ubu-nakago bearing the bold two-character signature.

The late-Edo koshirae is lacquered vermilion over a black foundation – pure samurai aesthetic. The tsuba, by Kurobane Katsutoshi, captures Mount Fuji with drifting clouds in iron with gold inlay, drawing clear inspiration from Hokusai’s Great Wave off Kanagawa. Shakudô fuchi-kashira in the Higo tradition, catfish menuki (namazu), and white samekawa hilt wrapped in golden-brown hishimaki silk braids complete a deeply considered and cohesive mounting.