Vertical window ventilighter, closed.

Horizontal window ventilighter, open.

Vertical window ventilighter, closed.

Simon Ventilighter Co. View of porch Ventilighter.

Idlewild Airport, hangars, horizontal detail and long windows

View of Ventilighter under Queensboro Bridge, in market.

30 East 42nd Street. Sample window taken at office, light metal casement sash, closed.

Antique silver ship on wheels, horizontal.

385 Madison Avenue. Manhattan Savings Bank, horizontal front elevation, two windows and center door, daytime].

37th Street and 5th Avenue. Ventilighters in the Franklin Simon Store.

Hotel Pennsylvania. N.Y.C. Simon Ventilighter Co.

Machine closed.

53rd Street and 6th Avenue. New York Hilton Hotel, close-up detail, section of windows.

Hospital room. Heating energy cabinet, horizontal style

West 57th Street. Consolidated Gas Co. office interior. Ventilighter.

34 West 34th Street. Sulka Store, Ventilighter in interior.

[Window.]

Sewage disposal plant, disintegrating tanks, closed.

Union Turnpike and 247th Street. Glen Oaks Village, Building 1, close-up detail showing bay window and two types of entrances.

[Sixth Avenue El train station closed.]