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George M. Mowbray

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George M. Mowbray.jpg Driving Bench Work and Dumping from HeadingThumbnailsMiners ascending, Central shaft, Hoosac TunnelDriving Bench Work and Dumping from HeadingThumbnailsMiners ascending, Central shaft, Hoosac TunnelDriving Bench Work and Dumping from HeadingThumbnailsMiners ascending, Central shaft, Hoosac TunnelDriving Bench Work and Dumping from HeadingThumbnailsMiners ascending, Central shaft, Hoosac TunnelDriving Bench Work and Dumping from HeadingThumbnailsMiners ascending, Central shaft, Hoosac TunnelDriving Bench Work and Dumping from HeadingThumbnailsMiners ascending, Central shaft, Hoosac TunnelDriving Bench Work and Dumping from HeadingThumbnailsMiners ascending, Central shaft, Hoosac Tunnel