Weston Aqueduct, Section 1, excavating for Outlet Chamber and Channel, Weston Aqueduct Outlet Chamber (terminal chamber?) Southborough, Mass., Aug. 7, 1902

Weston Aqueduct, Section 1, excavating for Outlet Chamber and Channel, Weston Aqueduct Outlet Chamber (terminal chamber?) Southborough, Mass., Aug. 7, 1902

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