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Model of Broad Street Suburban Station
Pennsylvania Railroad improvements
Groundbreaking ceremonies, Broad Street Suburban Station
Chilled water outlet and inlet from carrier units to 3 mezzanine in PSFS Building
Return water from pump to cooling tower in PSFS Building
Chilled water inlet and outlet from circulating pumps to 20th floor in PSFS Building
Cool water discharge from circulating pump to cooling towers in PSFS Building
Outlet and inlet from cooling tower to end from condensers on carrier units in PSFS Building
Philadelphia railroad stations, Red Arrow Lines trolley track and bus photographs