Mashiko Tennozuka Kofun, 3D-B.jpg
Saigen Jiro
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Mashiko Tennozuka Kofun, 3D B, Bird's-eye view of Interiors of Kofun, Mashiko Tennozuka Kofun
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益子天王塚古墳 石室俯瞰図
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Mashiko Tennozuka-kofun Tumulus: Sekishitsu-nada-zu
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益子天王塚古墳3D B古墳内部図
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