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 south wall, 1st floor east, Administration Building, showing proposed location of control panel, Winsor Dam, Quabbin Reservoir, Belchertown, Mass., Mar. 8, 1946
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