Distribution Department, Weston Aqueduct Supply Mains, Section 7, timbering supporting earth roof in tunnel at station 8+17, Newton, Mass., Aug. 25, 1910
Distribution Department, Weston Aqueduct Supply Mains, Section 7, timbering supporting earth roof in tunnel at station 8+17, Newton, Mass., Aug. 25, 1910
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Distribution Department, Weston Aqueduct Supply Mains, Section 7, timbering supporting earth roof in tunnel at station 8+17, Newton, Mass., Aug. 25, 1910