Contract No. 49, Excavating Diversion Channels, Site of Quabbin Reservoir, Dana, Hardwick, Greenwich, looking south at area north of Shaft 11A, Hardwick, Mass., Aug. 26, 1936

Contract No. 49, Excavating Diversion Channels, Site of Quabbin Reservoir, Dana, Hardwick, Greenwich, looking south at area north of Shaft 11A, Hardwick, Mass., Aug. 26, 1936

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