Important cultural property

An iron sword guard carved with shore pines and plovers by Tsuchiya Yasuchika, a leading master of Edo metalwork. Designated an Important Cultural Property in 1955.

An Important Cultural Property in Yamanashi, this iron sword guard by Hayashi Matashichi pierces cherry blossoms and nine-luminary crests, the two Hosokawa emblems.

Nine documents by Kawachiya Kashō, a wealthy farmer and brewer, and his heirs reveal how an educated villager in Edo Japan weighed family, learning, and survival.

Discover the 953-item Important Cultural Property collection documenting the achievements of Kunitomo Ikkansai (1778–1840), the 'Edison of the Edo Period.' From Japan's first reflecting telescope and sunspot observation records to the country's first practical air gun, explore the extraordinary scientific legacy born in a small gunsmith village in Shiga Prefecture.

Discover the Ichiji Kinrin Image, a Kamakura-period silk painting designated an Important Cultural Property in 1940 and privately preserved in Ichinobe, Higashiomi, Shiga. Explore the mystical iconography of this supreme esoteric Buddhist deity and the rich cultural heritage of eastern Ōmi.

A late Heian-period blade preserved in private hands in Chiba Prefecture and designated an Important Cultural Property of Japan in 1955. Although unsigned, it is attributed to Kanenaga, founder of the Gojō school of Yamashiro province and a disciple of the legendary Sanjō Munechika. The sword is a rare witness to the moment when the curved Japanese blade first took shape, embodying the refined courtly aesthetic of the Heian capital.

Discover the Katana, Unsigned (Yoshioka Ichimonji), an Important Cultural Property held in Chiba City. Forged in mid-Kamakura Bizen Province with a cutting edge of 72.8 cm and a deep curvature of 2.6 cm, this graceful blade was passed down through the legendary Uesugi clan and personally selected by warlord Uesugi Kagekatsu as one of his finest thirty-six swords. A small chip near the handguard reveals its use in actual combat. Explore the artistry of the Yoshioka Ichimonji school and museums where you can encounter related masterpieces.

The archive of the Katori family, hereditary priests of Katori Jingu in Chiba: 381 documents, late Heian to Edo, on how a great medieval shrine ran its estates.

A Kamakura-period Tale of Genji preserving 32 of its 54 chapters. No autograph survives, so early copies like this remain key witnesses. Privately held in Chiba.

The Important Cultural Property 'Sagoromo (Attributed to Fujiwara no Tameie)' is a Kamakura-period manuscript of the Heian court romance Sagoromo Monogatari, held in Chiba Prefecture. This four-volume work, traditionally attributed to the eminent poet Fujiwara no Tameie, son of Fujiwara no Teika, is an invaluable textual witness for the study of this celebrated tale's complex manuscript tradition.

An Important Cultural Property of Japan, this Edo-period sword guard (tsuba) by Nara Toshinaga (1667–1737) is among the supreme achievements of Japanese metalwork. Its high-relief carving and luxurious mixed-metal inlay depict the warrior Omori Hikoshichi carrying a demon woman — the vengeful spirit of Kusunoki Masashige — in a wraparound composition drawn from the Taiheiki chronicle. This guide introduces the work, its master craftsman, and where to encounter comparable tsuba masterpieces in Japan.

A 14th-century Bizen great sword by Motoshige, cut down and gold-inlaid with his name by the appraiser Honami Koon. 87.6 cm long, with a reverse-choji temper.

An unsigned katana attributed to Akihiro, a Nanbokucho-period Sagami smith and master of the hitatsura temper. An Important Cultural Property held in Osaka.

An unsigned katana attributed to Kyoto master Rai Kuniyuki, held privately in Osaka. We explain how a Kamakura blade lost its signature and where to see his swords.

A wide, unsigned katana attributed to the Kamakura smith Sadamune, now an Important Cultural Property in Osaka. Its broad form earned the byname Habahiro.

Discover the Murakumo-Gō, an Important Cultural Property attributed to the legendary Nanbokuchō-period swordsmith Gō Yoshihiro. Named by Toyotomi Hideyoshi for the cloud-like nie crystals along its blade, this celebrated katana passed through the Maeda clan, Shogun Tokugawa Tsunayoshi, and the Yanagisawa family.

Called the Masamune of Osaka for his steel's clarity, Inoue Shinkai forged this Important Cultural Property in 1676, its tang bearing the imperial chrysanthemum.

Discover the Important Cultural Property katana inscribed 'Yamashiro Daijō Fujiwara Kunikane / An Auspicious Day in the Eighth Month of Kan'ei 5' (1628), held privately in Osaka. Forged by the first-generation Sendai Kunikane—official swordsmith of Date Masamune—just one year after he received his court title, this masterpiece revived the ancient Yamato Hōshō tradition of straight-grain forging.

Designated as an Important Art Object, this katana was forged in 1614 by the first-generation Echizen Yasutsugu, official swordsmith to the Tokugawa shogunate, using imported nanban iron in Edo. A pioneering example of foreign iron in Japanese swordsmithing and a historically significant blade created in the year of the Siege of Osaka Castle.

Discover the Excavated Items from the Yokoi Temple Ruins in Yamato Province, an Important Cultural Property of Japan housed at the Osaka Museum of History. Unearthed from a long-vanished Nara-period temple in Nara City, the collection includes a gilt-bronze standing Bodhisattva, a Tang-influenced mountain-cloud double luan-bird mirror, ancient bronze coins, and other ritual metalwork that vividly evoke eighth-century Buddhist devotion.