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

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