Date: | 1910 |
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Description: | Zinc miners posing with an ore bucket down in a mine. |
Date: | 1890 |
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Description: | Highland Mines owner, Harris Lewis, center, with miners, stands before zinc ore crushers. |
Date: | 1915 |
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Description: | Two men work in a zinc mine near Platteville, Wisconsin. |
Date: | 1909 |
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Description: | Several men standing next to gears and machinery inside a diamond drill outfit. |
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