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Mining; three men sitting at a desk examining rock samples (blurry image)
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Mining; two men in lab coats testing mining samples
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Mining; three men sitting at a desk examining rock samples
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Mining; two men in a field setting up an explosives detonator(?)
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Mining, 1966; two men wearing gas masks and hard hats
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Mining, 1966; a man walking up stairs wearing a gas mask and hard hat
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Mining, 1966; five men walking up stairs wearing gas masks and hard hats (darker image)
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Mining, 1966; two men wearing gas masks and hard hats, one man checking another man's pulse
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Mining, 1966; two men wearing protective mining gear ; a man in a suit checking the pulse of one of the men wearing mining gear
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Mining, 1966; five men walking up stairs wearing gas masks and hard hats
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Mining, 1966; two men in lab coats testing mining samples [3 of 3]
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Mining, 1966; two men in lab coats testing mining samples [2 of 3]
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Mining, 1966; two men in lab coats testing mining samples [1 of 3]
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Mining, 1966; a man in a lab coat using tongs to place a sample in an industrial oven
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Mining, 1966; a man in a lab coat using protective equipment to pour hot black liquid into a mold ; man in a lab coat working in background
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Mining, 1966; a man in a lab coat moving a hot cup to a table ; man in a lab coat working in background
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Mining, 1966; a man in a lab coat pouring black liquid into a mold ; man in a lab coat working in background