Woolworth Building, boiler room looking N.W.

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

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

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

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

Woolworth Building, from center Broadway side looking N.W.

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

Woolworth Building, engine room looking S.W.

Woolworth Building, [from] Barclay looking N.W.

Woolworth Building, engine room looking N.E.

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

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

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

Woolworth Building, sub-cellar N.W. corner.

Woolworth Building, engine room N.E. corner.

Woolworth Building, engine room.

Woolworth Building, shoring N.W. corner.

Woolworth Building, exterior from N.W.

Woolworth Building, sub-cellar, pit in N.W. corner.

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