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Mine Entrance
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The tunnels’ entrance had small barracks with boards and sheet metal, which stored the prisoner’s working tools such as: axes, pickaxes, shovels, hammer drills, mining drills (hexagonal section rods of different lengths from 50 to 150 cm placed in the hammer and drilling holes where the explosive device would be put).Before entering the mine, the prisoners would be divided in groups of three, where one was a miner and two were carters.After taking their work tools, they would enter the tunnel and  go to the exploded area to start work.

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