Woolworth Building, engine room.

Woolworth Building, engine room.

Woolworth Building, engine room N.E. corner.

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

Woolworth Building, engine room.

Woolworth Building. Engine room.

Woolworth Building, engine room, filters.

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

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

Woolworth Building, Engine Room

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

Woolworth Building, engine room looking N.W.

Woolworth Building, engine room looking S.W.

Woolworth Building, engine room looking N.E.

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

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

Woolworth Building. Engine room from S.E. corner.

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

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

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