Woolworth Building. Grand staircase.

Woolworth Building. Looking up grand staircase.

Woolworth Building. Rear of grand staircase toward front.

Woolworth Building. Detail of Broadway Trust staircase.

Woolworth Building, vault.

Woolworth Building, boiler room.

Woolworth Building. Engine room.

Woolworth Building, engine room.

Woolworth Building, rendering.

39 Broadway. Harriman Building, basement staircase.

Woolworth Building. Safe deposit vault.

233 Broadway. Woolworth Building.

Woolworth Building, general exterior.

Woolworth Building, engine room.

Woolworth Building, switchboard.

Woolworth Building. Rathskellar.

New York Custom House. Grand staircase, interior.

Woolworth Building, air cushions #7-10.

Woolworth Building, boiler room looking north.

Woolworth Building, shoring N.W. corner.