[Interior, detail of air ducts.]
[Interior, view of air ducts.]
[Interior of unidentified building, possibly a factory.]
[Interior, possibly a basement, with unidentified equipment.]
[Factory building, structure on roof.]
[Exhaust system on roof.]
60 Wall Street [70 Pine Street.] Cities Service Company. Interior, Riggs-Distler Heat units
325 East 79th Street. Penthouse garden, 17th floor.
17-19 West 17th Street. Loft building.
26-32 West 17th Street. Loft building.
[Brick wall cut-away with embedded drainage pipe.]
[Machine room.]
138-140 West 17th Street. Loft building.
[17-19 West 17th Street.]
29th Street pier. S.S. Mobile City ship, Isthmian Line. Sump pump pipes
[Interior, boiler room.]
12 East 86th Street. Croydon Hotel, 17th floor penthouse garden, Mrs. Zoylner.
[Interior, detail of meters.]
17th Street and 5th Avenue. Mott Iron Works Building.