East 58th Street. Street opening, wiping joint of lead pipe on street

[Interior, detail of meters.]

[Interior, boiler room.]

[Machine room.]

[Interior, boiler room.]

[Interior with machinery.]

[Interior, boiler room.]

[Brick wall cut-away with embedded drainage pipe.]

[Heating control valve on 17th floor of unidentified building.]

[Factory building, structure on roof.]

[Excavation of an unidentified street.]

[Interior, radiator manufacturing shop.]

[Sixth Avenue El and street excavation.]

[Sixth Avenue El and street excavation.]

[Exhaust system on roof.]

[Interior, boiler room.]

[Interior, detail of air ducts.]

[Interior, possibly a basement, with unidentified equipment.]

29th Street pier. S.S. Mobile City ship, Isthmian Line. Sump pump pipes

533 West 57th Street. Pavelle Laboratories. Interior, photo lab. Construction view