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Ōyamazumi Shrine Treasure House

Collection of ancient samurai weaponry and shrine statuary. Set in a pleasant garden beside Ōyamazumi Shrine.

Ōyamazumi Shrine Treasure House

As one of the most historically significant shrines in Japan, and beautiful to boot, Ōyamazumi Shrine on Ōmishima Island is worth visiting in its own right. But another reason to visit the shrine is the National Treasure Hall, which holds a fine collection of ancient samurai weaponry and shrine statuary. Warriors visited the shrine to pray for victory, and the weapons and armour were offered to the shrine in gratitude for success in battle.

The Treasure Hall is a rather foreboding windowless concrete building. It’s set in a pleasant garden. The first floor has a room full of naked blades—swords and naginata (halberds) displayed without handles or scabbards. Unlike many of the blades on display in Japan, these have chips missing from the edges and dings in the sides, which suggest use in real battles.

Oyamazumi_Shrine_Treasure_House_armour

As you come up stairs to the second floor, you encounter four massive shrine guardians holding bows and arrows. They have scary staring eyes and down turned mouths, and they present a truly dramatic sight. One of them is coloured black for reasons that aren’t apparent. These fellows date from 1323 and they’re in excellent condition. There are also some improbably large swords on this floor. Known as ōdachi, they have a total length of 180 cm and weigh 4,950 g. They must have dwarfed the men who carried them.

The top floor has elaborate armour belonging to Kōno Michinobu from 1190, shogun Minamoto Yoritomo from around the same time, and Kono Michinari from 1281. Unlike the bulky metal armour of the West, this samurai armour looks light and flexible. Most of the exhibits are in an excellent state of preservation. Some of the old swords were gaudily caparisoned, and one from 1166 is positively dandy in its proportions and decoration. The oldest sword on display is from the Heian around 950. It’s very small, thin and dainty looking. One corner features arrows of all varieties, some with feathers still attached. Not everything is well preserved however. There’s a section devoted to some knackered-looking swords, with pitifully worm-eaten handles, although the metal is still in perfect condition. The tanto daggers are tiny but viciously pointed and sharp.

The National Treasure Hall is a separate building. It has suits of armour belonging to all sorts of historical bigwigs, including the armour bodice that belonged to a female samurai who went by the name Ōhori Yasumochi no Musume Tsuruhime. Each suit of armour is housed in its own wood and glass case in a dimly lit room, creating a heavy and portentous atmosphere.

Oyamazumi_Shrine_Treasure_House_Tsuruhime

Labels in English give the name of the type of weapon or armour, the owner where known, and the date, but nothing else. Photography is not permitted inside the buildings. The admission also includes entry to the adjacent Ōmishima Maritime Museum.

Information

Name in Japanese: 大山祇神社宝物館

Pronunciation: ōyamazumi jinja hōmotsukan

Address: 3327 Miyaura, Omishimacho, Imabari, Ehime 794-1304

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