Ashio copper mine tsudoukou.JPG
Saigen Jiro
ja
足尾銅山 通洞坑
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en
Ashio copper mine tsudoukou, Mining railway of Ashio copper mine
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en
Ashio Copper Mine, Tsudoken
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ja
足尾銅山通銅、足尾銅山鉱山鉱山鉄道
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copper mine cupric copper lycaena