Contract No. 51, East Branch Baffle, Site of Quabbin Reservoir, Greenwich, Hardwick, quarry face and tunnel before blast, Hardwick, Mass., Sep. 16, 1936

Contract No. 51, East Branch Baffle, Site of Quabbin Reservoir, Greenwich, Hardwick, quarry face and tunnel before blast, Hardwick, Mass., Sep. 16, 1936

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