Woolworth Building. Swimming tank.

Woolworth Building, swimming tank from S.E. corner.

Woolworth Building, basement room over swimming tank, view from entrance.

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

Woolworth Building, switchboard.

Woolworth Building, switchboard.

Woolworth Building, vault.

Woolworth Building. Pump room.

Woolworth Building. Boiler room.

Woolworth Building, boiler room.

Woolworth Building, engine room.

Woolworth Building, engine room.

Woolworth Building, general exterior.

Woolworth Building

Woolworth Building, boiler room.

Woolworth Building. Engine room.

Woolworth Building. Grand staircase.

Woolworth Building. Grand staircase.

Woolworth Building, engine room.

Woolworth Building. Corridor on 24th Floor, Woolworth offices.