Kotani Yasunori and the Yasukuni Sword
Kotani Kenzo (Yasunori) (1909–2003) was a master swordsmith associated with the prestigious Yasukuni Shrine in Tokyo, a center for sword production under strict Army supervision during the Showa era. Coming from Hiroshima prefecture, he trained under his uncle Kajiyama Taketoku and gained renown for his skill, winning multiple awards in the 1930s.
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Signature and Style: Yasunori’s swords bear the character “靖” (Yasu), marking them as official Yasukuni Shrine swords (Yasukuni-to).
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Blade Characteristics: These swords are known for their excellent jigane (steel texture) and a clean suguha hamon (straight temper line) with active ko-ashi (small branches or extensions), mimicking older classical styles.
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Military Connection: The swords were produced under military inspection, ensuring top quality for officers and dignitaries such as Field Marshal Terauchi.
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Legacy: After WWII, Yasunori continued swordsmithing in Shikoku under the name Takenori. His work remains highly respected, and he was active in NBTHK competitions in the 1970s.
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Rarity and Value: Yasukuni swords are rare today due to their controlled production and strict standards. Their provenance and condition (NBTHK Hozon certification) add significant collectible value.
Sword Details:
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Blade Length: 69.6 cm
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Sori (curvature): 1.6 cm
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Kissaki (tip length): 2 cm
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Mekugi holes: 2
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Era: Showa period, circa 1939
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Mountings: Elegant silver dragon koshirae (mountings)
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Condition: Excellent, preserved with NBTHK Hozon certification
Cultural and Historical Significance:
The Yasukuni Shrine swords were not just weapons but symbolic artifacts, representing the spirit of the Japanese Army and tradition. Kotani Yasunori’s position as the last swordsmith working under this system marks the end of a significant chapter in Japanese swordmaking history.
