American Air Mail Society
Founded 1923
 | August 15, 1923 8¢ Dark Green Airplane propeller and radiator Scott #C4 |
 | August 17, 1923 16¢ Dark Blue U.S. Air Mail Insignia Scott #C5 |
 | August 21, 1923 24¢ Rose & Blus Curtis Jenny Biplane Scott #C6 |
 | February 13, 1926 10¢ Dark Blue Map of the U.S. & two planes Scott #C7 |
 | September 18, 1926 15¢ Olive Brown Map of the U.S. & two planes Scott #C8 |
 | January 25, 1927 20¢ Yellow Green Map of the U.S. & two planes Scott #C9 |
 | June 18, 1927 10¢ Dark Blue Spirit of St. Louis Scott #C10 |
 | July 25, 1928 5¢ Carmine & Blue Beacon on Sherman Hill Scott #C11 |
