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michael-otto-foto: Hanover colliery
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michael-otto-foto: Hanover colliery
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michael-otto-foto: Zeche Hannover
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michael-otto-foto: Zeche Hannover
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michael-otto-foto: Hanover colliery
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michael-otto-foto: oilcontainer
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michael-otto-foto: welcome to the machine
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michael-otto-foto: strong hold
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michael-otto-foto: four in the foreground