Contract No. 66, Regulating Dams, Middle Branch (New Salem), and East Branch of the Swift River, Hardwick and Petersham (formerly Dana), looking downstream at east branch regulating dam from west side of river, Hardwick, Mass., Sep. 12, 1939

Contract No. 66, Regulating Dams, Middle Branch (New Salem), and East Branch of the Swift River, Hardwick and Petersham (formerly Dana), looking downstream at east branch regulating dam from west side of river, Hardwick, Mass., Sep. 12, 1939

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