Contract No. 66, Regulating Dams, Middle Branch (New Salem), and East Branch of the Swift River, Hardwick and Petersham (formerly Dana), excavating stream control channel, looking easterly, east branch regulating dam, Hardwick, Mass., May 12, 1939

Contract No. 66, Regulating Dams, Middle Branch (New Salem), and East Branch of the Swift River, Hardwick and Petersham (formerly Dana), excavating stream control channel, looking easterly, east branch regulating dam, Hardwick, Mass., May 12, 1939

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