Hotel Pennsylvania. N.Y.C. Simon Ventilighter Co.
View of Ventilighter under Queensboro Bridge, in market.
37th Street and 5th Avenue. Ventilighters in the Franklin Simon Store.
Vertical window ventilighter, closed.
West 57th Street. Consolidated Gas Co. office interior. Ventilighter.
Horizontal window ventilighter, closed.
120-06 Ninth Avenue. Porch view, upstairs.
Horizontal window ventilighter, open.
[Interior, sun porch.]
[Detail of balcony or porch.]
Austin-Nichols Co., view of switchboard.
The Harlem Hospital, exterior of sleeping porches.
Emil Eiseman's residence, enclosed porch.
Best and Co., final view.
34 West 34th Street. Sulka Store, Ventilighter in interior.
Precision Machine Co. View of inserting movement in machine.
View of lead flashing on roof of National Lead Co.