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

Woolworth Building, engine room looking S.W.

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

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

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

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

Woolworth Building, from Broadway looking S.W.

Woolworth Building, from Broadway looking S.W.

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

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

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

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

View from Woolworth Building roof looking at S.W. corner of building.

Woolworth Building, exterior from S.W. corner.

Woolworth Building, from center Broadway looking S.W.

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

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

Woolworth Building, engine room looking N.W.

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

Woolworth Building, engine room from center looking west.