Front:
NITED AIRLINES
000
SOR
2800
A CENTURY OF PROGRESS
IN TRANSPORTATION
Back:
POST CARD
Please
address and
return to
stewardess
who will
stamp and
mail card
for you.
IN FLIGHT WITH
UNITED AIR LINES
This photograph shows a Century
of Progress in transportation — the
famous old John Bull engine con-
trasted with one of the new Boeing “3-Mile-A-Minute"
monoplanes in service on United Air Lines' Coast-to-
Coast and other routes. It can fly nearly 150 miles an
hour faster than the train drawn by the old type engine.
The United Air Lines' plane was selected for exhibition
in the Dome of the Travel and Transport Building
because it represents latest features of airplane design
and construction.
NO. 408
