![](https://www.americanairmailsociety.org/wp-content/uploads/2018/08/C12.jpg) | February 10, 1930
5¢ Violet (Flat Plate Printing)
Winged Globe
Scott #C12 |
![](https://www.americanairmailsociety.org/wp-content/uploads/2018/08/C13.jpg) | April 19, 1930
65¢ Green
Graf Zeppelin over the Atlantic
Scott #C13 |
![](https://www.americanairmailsociety.org/wp-content/uploads/2018/08/C14.jpg) | April 19, 1930
$1.30 Brown
Graf Zeppelin over the Atlantic
Scott #C14 |
![](https://www.americanairmailsociety.org/wp-content/uploads/2018/08/C15.jpg) | April 19, 1930
$2.60 Blue
Graf Zeppelin
Scott #C15 |
![](https://www.americanairmailsociety.org/wp-content/uploads/2018/08/C16.jpg) | August 19, 1931
5¢ Violet (Rotary Press Printing)
Winged Globe
Scott #C16 |
![](https://www.americanairmailsociety.org/wp-content/uploads/2018/08/C17.jpg) | September 26, 1932
8¢ Olive Bistre
Winged Globe
Scott #C17 |
![](https://www.americanairmailsociety.org/wp-content/uploads/2018/08/C18.jpg) | October 2, 1933
50¢ Green
Graf Zeppelin
Scott #C18 |
![](https://www.americanairmailsociety.org/wp-content/uploads/2018/08/C19.jpg) | June 30, 1934
6¢ Dull Orange
Winged Globe
Scott #C19 |
![](https://www.americanairmailsociety.org/wp-content/uploads/2018/08/CE1.jpg) | August 30, 1934
16¢ Dark Blue
Great Seal of the U.S.
Scott #CE1 |
![](https://www.americanairmailsociety.org/wp-content/uploads/2018/08/C20.jpg) | November 22, 1935
25¢ Blue
China Clipper
Scott #C20 |
![](https://www.americanairmailsociety.org/wp-content/uploads/2018/08/CE2.jpg) | February 10, 1936
16¢ Carmine & Blue
Great Seal of the U.S.
Scott #CE2 |
![](https://www.americanairmailsociety.org/wp-content/uploads/2018/08/C21.jpg) | February 15, 1937
20¢ Green
China Clipper
Scott #C21 |
![](https://www.americanairmailsociety.org/wp-content/uploads/2018/08/C22.jpg) | February 15, 1937
50¢ Carmine
China Clpper
Scott #C22 |
![](https://www.americanairmailsociety.org/wp-content/uploads/2018/08/C23.jpg) | May 14, 1938
5¢ Carmine & Blue
Eagle & Shield
Scott #C23 |
![](https://www.americanairmailsociety.org/wp-content/uploads/2018/08/C24.jpg) | May 16, 1939
30¢ Blue
Wingled Globe
Scott #C24 |