| 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 |