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Miners ascending, Central shaft, Hoosac Tunnel

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Miners ascending, Central shaft, Hoosac Tunnel.jpg George M. MowbrayThumbnails'Stopeing out' enlargement, East End Hoosac TunnelGeorge M. MowbrayThumbnails'Stopeing out' enlargement, East End Hoosac TunnelGeorge M. MowbrayThumbnails'Stopeing out' enlargement, East End Hoosac TunnelGeorge M. MowbrayThumbnails'Stopeing out' enlargement, East End Hoosac TunnelGeorge M. MowbrayThumbnails'Stopeing out' enlargement, East End Hoosac TunnelGeorge M. MowbrayThumbnails'Stopeing out' enlargement, East End Hoosac TunnelGeorge M. MowbrayThumbnails'Stopeing out' enlargement, East End Hoosac Tunnel