Niwatorizuka Kofun, 3D-N.jpg
Saigen Jiro
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鶏塚古墳 石室展開図
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Niwatorizuka Kofun, 3D N, Nets of Interiors of Kofun, Niwatorizuka Kofun
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Torizuka-kofun Tumulus: A map of the expansion of the stone chamber
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庭取塚古墳3D N古墳の内部構造
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