Contract No. 51, East Branch Baffle, Site of Quabbin Reservoir, Greenwich, Hardwick, looking southeasterly at east branch baffle, Hardwick, Mass., Oct. 8, 1936

Contract No. 51, East Branch Baffle, Site of Quabbin Reservoir, Greenwich, Hardwick, looking southeasterly at east branch baffle, Hardwick, Mass., Oct. 8, 1936

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