Contract No. 150, Installation of a Waterwheel, Generator, Switchgear, Transformer, Substation, and the Construction of a Transmission Line, Winsor Dam Power Plant, Belchertown, interior view of west wall, 1st floor east, of Administration Building, showing location of control panel, Winsor Dam, Quabbin Reservoir, Belchertown, Mass., Jan. 8, 1947
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