[Interior, boiler room.]
[Machine room.]
[Heating control valve on 17th floor of unidentified building.]
[Interior, radiator manufacturing shop.]
[Exhaust system on roof.]
[Interior, detail of meters.]
East 58th Street. Street opening, wiping joint of lead pipe on street
[Interior with machinery.]
[Factory building, structure on roof.]
533 West 57th Street. Pavelle Laboratories. Interior, photo lab. Construction view
[Street excavation.]
Furnace and boiler room
Woolworth Building, West Section of Rear Basement Wall at 1 1/2 Barclay
[Interior of unidentified building, possibly a factory.]
[Brick wall cut-away with embedded drainage pipe.]