February 10, 1930
5¢ Violet (Flat Plate Printing)
Winged Globe
Scott #C12

April 19, 1930
65¢ Green
Graf Zeppelin over the Atlantic
Scott #C13

April 19, 1930
$1.30 Brown
Graf Zeppelin over the Atlantic
Scott #C14

April 19, 1930
$2.60  Blue
Graf Zeppelin
Scott #C15

August 19, 1931
5¢ Violet (Rotary Press Printing)
Winged Globe
Scott #C16

September 26, 1932
8¢ Olive Bistre
Winged Globe
Scott #C17

October 2, 1933
50¢ Green
Graf Zeppelin
Scott #C18

June 30, 1934
6¢ Dull Orange
Winged Globe
Scott #C19

August 30, 1934
16¢ Dark Blue
Great Seal of the U.S.
Scott #CE1

November 22, 1935
25¢ Blue
China Clipper
Scott #C20

February 10, 1936
16¢ Carmine & Blue
Great Seal of the U.S.
Scott #CE2

February 15, 1937
20¢ Green
China Clipper
Scott #C21

February 15, 1937
50¢ Carmine
China Clpper
Scott #C22

May 14, 1938
5¢ Carmine & Blue
Eagle & Shield
Scott #C23

May 16, 1939
30¢ Blue
Wingled Globe
Scott #C24