29th Street pier. S.S. Mobile City ship, Isthmian Line. Sump pump pipes
[Interior, detail of meters.]
[Interior with machinery.]
[Interior, radiator manufacturing shop.]
[Exhaust system on roof.]
[Interior, boiler room.]
[Interior, possibly a basement, with unidentified equipment.]
[Brick wall cut-away with embedded drainage pipe.]
[Detail, machine.]
[Heating control valve on 17th floor of unidentified building.]
Small addressing machine
Machine set up
[Man operating unidentified machine.]
[Interior of unidentified building, possibly a factory.]
[Interior, view of air ducts.]
[Interior, detail of air ducts.]
Interior, machine shop
[Detail, machine part.]
[Equipment detail, New York World's Fair.]
