Wachusett Department, Wachusett-Sudbury power transmission line, Sudbury Reservoir crossing, steel towers 68 feet high, span 686 feet, sag 38 feet, Southborough, Mass., Aug. 1, 1918

Wachusett Department, Wachusett-Sudbury power transmission line, Sudbury Reservoir crossing, steel towers 68 feet high, span 686 feet, sag 38 feet, Southborough, Mass., Aug. 1, 1918

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