Devon Concentration Plant, Wallaroo Mines(GN00596).jpg
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Devon Concentration Plant, Wallaroo Mines(GN00596), Devon Concentration Plant,  Wallaroo Mines, c. 1910.
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Devon Concentration Plant, Wallaroo Mines(GN00596), Wallaroo Mines, Uploaded by Htsa, Glass Negatives, Devon Concentration Plant,  Wallaroo Mines
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ワラルー鉱山デボン濃縮工場、ワラルー鉱山デボン濃縮工場、1910年頃。
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ワラルー鉱山のデボン濃縮工場
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attentional concentration