Woolworth Building, engine room from near center looking east.

Woolworth Building, engine room from S.W. corner looking west.

Woolworth Building, engine room, pump room from west end.

Woolworth Building, between engine and boiler room looking East.

Woolworth Building, engine room looking S.W.

Woolworth Building, engine room looking N.E.

Woolworth Building, engine room from center looking west.

Woolworth Building. Grille room looking East.

Woolworth Building, engine room from near center looking S.E.

Woolworth Building, engine room looking N.W.

Woolworth Building, engine room.

Woolworth Building, engine room.

Woolworth Building, sub-basement midway between boiler and engine room looking east.

Woolworth Building, Engine Room

Woolworth Building, From Broadway End Looking West [Construction zone.]

Woolworth Building, from Broadway looking west.

Woolworth Building, engine room from S.E. corner.

Woolworth Building, engine room from N.W. corner.

Woolworth Building, engine room, filters.

Woolworth Building, engine room from center looking N.E.