Distribution Department, Weston Aqueduct Supply Mains, Section 7, 60-inch main and blow-off near Ventilator Chamber on Cochituate Aqueduct, Newton, Mass., Jun. 29, 1910

Distribution Department, Weston Aqueduct Supply Mains, Section 7, 60-inch main and blow-off near Ventilator Chamber on Cochituate Aqueduct, Newton, Mass., Jun. 29, 1910

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