Philippine National Bank in the Woolworth Building. Officer's quarters.

Woolworth Building, boiler room.

Woolworth Building, engine room.

Woolworth Building. Pump room.

Woolworth Building. Boiler room.

Woolworth Building, engine room.

Woolworth Building. Detail of corner windows in hall. Irving National Bank.

Woolworth Building, engine room, filters.

Woolworth Building. Entrance hall toward Irving National Bank.

Woolworth Building. Café toward grille room.

Woolworth Building, engine room looking N.W.

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

Woolworth Building, boiler room looking N.W.

Woolworth Building, engine room N.E. corner.

Woolworth Building, boiler room.

Woolworth Building, engine room.

Woolworth Building. Engine room.

Woolworth Building, engine room.

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

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