Woolworth Building, between engine and boiler room looking East.

Woolworth Building, sub-basement central section, boiler room.

Woolworth Building, sub-basement engine room from S.E. looking N.W.

Woolworth Building, sub-basement engine room from S.W. corner looking N.E.

Woolworth Building, boiler room looking north.

Woolworth Building, sub-basement rear of boilers, west side.

Woolworth Building, boiler room behind east boilers.

Woolworth Building, boiler room.

Woolworth Building, boiler room looking north.

Woolworth Building, boiler room looking N.W.

Woolworth Building, engine room looking west from east end.

Woolworth Building, boiler room.

Woolworth Building. Boiler room.

Woolworth Building, engine room from near center looking east.

Woolworth Building, sub-basement, coal bunkers from east end.

Woolworth Building, engine room.

Woolworth Building. Engine room.

Woolworth Building, engine room.

Woolworth Building, sub-basement center south.

Woolworth Building, boiler room, from south looking north.