Assertion: koishikawa arsenal | /r/HasProperty | nippon teikoku rikugun
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text: The Koishikawa Arsenal (小石川工廠, Koishikawa Kōshō), formally Imperial Japanese Army Tokyo Arsenal (日本帝国陸軍東京砲兵工廠, Nippon Teikoku Rikugun Tokyo Hōheikōshō) was an arsenal in the Koishikawa area of Tokyo, on the grounds of today's Tokyo Dome City and the Koishikawa Kōrakuen Garden.