Woolworth Building, sub-cellar looking toward S.W. corner.

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

Woolworth Building, sub-cellar lower level from center looking S.W.

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

Woolworth Building, sub-basement swimming pool from S.W. corner.

Woolworth Building, sub-cellar Park Place side, looking S.W. at shoring.

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

Woolworth Building, exterior from S.W. corner.

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

Woolworth Building, detail S.W. corner Barclay Street.

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

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

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

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

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

Woolworth Building, New Section S.W. Corner [Construction zone.]

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

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

Woolworth Building, basement large room, S.W. corner view from east end.

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