Contract No. 49, Excavating Diversion Channels, Site of Quabbin Reservoir, Dana, Hardwick, Greenwich, looking south at bridge, middle-east channel, Hardwick, Mass., May 20, 1936

Contract No. 49, Excavating Diversion Channels, Site of Quabbin Reservoir, Dana, Hardwick, Greenwich, looking south at bridge, middle-east channel, Hardwick, Mass., May 20, 1936

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