Woolworth Building, engine room.

Woolworth Building, engine room.

Woolworth Building, engine room.

Woolworth Building, engine room.

Woolworth Building, engine room, filters.

Woolworth Building, Engine Room

Woolworth Building, engine room looking N.W.

Woolworth Building, engine room N.E. corner.

Woolworth Building, engine room looking S.W.

Woolworth Building, engine room looking N.E.

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

233 Broadway. Woolworth Building. Interior, engine room

Woolworth Building, engine room from center looking west.

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 S.E. corner.

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

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

Woolworth Building, engine room looking west from east end.