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Swing Bridge at New York, NY
Building Harlem River bridge.
Swing Bridge at New York, NY
Building Harlem River bridge.
Swing Bridge at New York, NY
Building Harlem River bridge.
Swing Bridge at New York, NY
Building Harlem River bridge.
Swing Bridge at New York, NY
Building Harlem River bridge.
stone arch bridge at Springfield, MA
Roadway arch.
Trackage at Detroit, MI
Enlarging North Yard.
Trackage at Detroit, MI
Enlarging North Yard.
signals
Propane gas tanks at Chili Junction.
signals
Propane gas tanks at Chili Junction.
vertical lift bridge at New York, NY
Building Caisson for Harlem River Bridge at 132nd St.
Signals at Beacon, NY
Automatic Train Stop Inductor.
vertical lift bridge at New York, NY
Architects Drawing 138th St. Bridge.
trackage at Charleston, WV
Peters Creek Railroad.
trackage at Charleston, WV
Peters Creek Railroad.