Front:
NC
13301
80ING
NES
Back:
12-
as is
Mailed from the Dome of the
TRAVEL AND TRANSPORT BUILDING
A CENTURY OF PROGRESS, CHICAGO
This three-mile-a-minute Wasp-
powered Boeing plane of United Air
Lines represents the latest in air-
plane design and construction. Ten
passengers occupy comfortable re-
clining chairs in the cabin which is
in charge of a stewardess. Each plane has two pilots.
[See diagrammatic photo on other side.]
Please
drop card in
slot provided.
Mail collected
several times
daily.