Minatogawa Shrine Tantō by Masatada (January 1942)

Some Japanese swords transcend the role of weapons and become historical documents forged in steel. This remarkable Minatogawa Shrine tantō, signed by Masatada and dated January 1942, is one of those exceptional pieces. Created during the height of the Second World War, it represents the craftsmanship of one of the founding swordsmiths of the famous Minatogawa Jinja forge, a workshop established exclusively to produce traditionally forged swords for officers of the Imperial Japanese Navy.

Unlike the mass produced military blades of the period, swords from the Minatogawa Shrine were forged entirely by traditional methods. Their production was extremely limited, and today authentic examples are among the most sought after Japanese military swords by collectors of both gendaitō and Imperial Japanese militaria.

The Minatogawa Shrine Forge

The Minatogawa Jinja forge occupies a unique place in modern Japanese sword history. Established on 12 July 1941, the shrine forge was created to continue the centuries old tradition of Japanese swordsmithing while supplying elite naval officers with blades worthy of Japan's military heritage.

Only a small number of carefully selected swordsmiths were invited to work there. Every blade was forged using traditional tamahagane steel, water quenched, and finished according to classical methods rather than modern industrial production.

The forge adopted the famous Kikusui mon, the Chrysanthemum on Water crest associated with Minatogawa Shrine, engraved on the tang of every authentic blade. Today this emblem is one of the defining characteristics collectors look for when identifying genuine Minatogawa swords.

Because the forge operated for only a short period during the war, surviving examples are considerably rarer than swords from many other wartime smiths.

Masatada, A Founding Master

Masatada was born in Shimane Prefecture under his real name Michimasa Murakami. Before joining the Minatogawa Shrine forge, he trained under the renowned Kotani Yasunori at the Yasukuni Shrine sword forging program, one of Japan's most prestigious centres for modern swordmaking.

He also studied under the respected master Takahashi Sadatsugu, further refining his skills in traditional forging techniques.

His expertise earned him the position of Chief of the Nihontō Research Department at the Yasuki Hitachi steel works, one of Japan's most important metallurgical institutions responsible for producing steel used in high quality Japanese swords.

Together with fellow smith Masataka, Masatada became one of the two founding swordsmiths of the Minatogawa Shrine forge.

His career at Minatogawa was unfortunately brief. He left the shrine in 1942 and passed away from illness only two years later in 1944. Because of this short working period, authentic signed blades by Masatada are exceptionally scarce today.

During his career he also signed swords using the names Murakami Muramitsu and Michimasa.

Ranked Among the Finest Modern Swordsmiths

Masatada quickly established himself as one of the finest swordsmiths of the modern era.

In the 1942 Ranking of Modern Swordsmiths, he was listed in the prestigious category of 'Highest Rank of Precious Items', reflecting the high regard in which his work was held during the war.

His blades were admired not only for their beauty but also for their exceptional functionality, making them suitable for active naval service while preserving the traditions of classical Japanese swordmaking.

A Blade of Classical Elegance

This tantō measures 22.78 cm in length and is forged in the elegant hira-zukuri style with a subtle uchi-zori curvature. Although compact in size, the blade displays remarkable refinement.

The hamon is a beautifully executed nioi-deki ko-gunome, enriched with fine ko-nie. The nioi-guchi remains exceptionally consistent throughout the cutting edge, while delicate ko-ashi and subtle kuchigaiba add further complexity to the temper pattern.

The forging surface (jihada) consists primarily of a refined ko-itame, mixed with areas of o-itame, creating a lively yet controlled texture that reflects Masatada's technical mastery.

The boshi finishes in a graceful ko-maru with a short kaeri, completing the blade with understated elegance.

Original Signature and Date

One of the greatest strengths of this tantō is its perfectly preserved original tang (ubu nakago). The tang bears, on the omote: (Kikusui Mon) Minatogawa Masatada. On the ura: Showa 17 (1942), January.

The engraved Kikusui crest immediately identifies the blade as an authentic product of the Minatogawa Shrine forge. The tang remains untouched, retaining its original form with kiri yasurime, kurijiri, and a single mekugi-ana, exactly as it left the forge in 1942.

Original Naval Dirk Mounts

Perhaps even more remarkable is the survival of the complete Imperial Japanese Navy dirk koshirae. The mounts remain completely original and are preserved in excellent condition. Included with the sword are the original Imperial Japanese Navy dirk koshirae, a silver habaki, a matching shirasaya, and a wooden tsunagi fitted for the naval mounts.

Finding a Minatogawa Shrine blade still accompanied by its complete wartime naval fittings is increasingly uncommon, making this example especially desirable for advanced collectors.

Condition

The blade is in excellent polish and shows no kizu or structural flaws. Its healthy surface allows the jihada, hamon and hataraki to be appreciated exactly as intended by the smith over eighty years ago. The overall preservation is exceptional for a naval officer's sidearm that survived one of history's most destructive conflicts.

A Rare Piece of Japanese Naval History

Unlike standard military issued weapons, swords from the Minatogawa Shrine represent the final chapter of traditional Japanese swordmaking before the end of the Second World War. They were created by master craftsmen, produced in extremely limited numbers, and intended for officers who valued both martial tradition and the spirit of the samurai.

This signed and dated January 1942 Masatada tantō embodies all of those qualities. It is simultaneously a fine work of traditional craftsmanship, an authentic Imperial Japanese Navy officer's dirk, and a historically significant artifact from one of Japan's most exclusive wartime sword forges.

For collectors seeking museum quality gendaitō with impeccable provenance, original fittings, and outstanding historical importance, few opportunities compare with an authentic Minatogawa Shrine blade by one of its founding swordsmiths.

Specifications

Swordsmith: Masatada (Murakami Michimasa). Forge: Minatogawa Shrine (Minatogawa Jinja). Date: January 1942 (Showa 17). Period: Gendaitō. Type: Tantō. Nagasa: 22.78 cm. Sugata: Hira-zukuri. Sori: Slight uchi-zori. Mune: Mitsu-mune. Motohaba: 2.16 cm. Kasane: 6.1 mm. Nakago: Ubu, kurijiri, kiri yasurime, one mekugi-ana. Signature: (Kikusui Mon) Minatogawa Masatada. Date on Tang: January, Showa 17 (1942). Mounts: Complete original Imperial Japanese Navy dirk koshirae with silver habaki, shirasaya and tsunagi.

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