United States
0.62 - 0.74$
price on 11.03.2023
| Country: | United States |
| Type: | Postage stamps |
| Series: | Aeronautics Conference Issue |
| Nominal: | 2 ¢ |
| Year: | 1928 |
| Perforation: | line 11 |
Aeronautics Conference Issue
 Wright Flyer (1903) 0.62$ |  Airliner Ryan Brougham B-5 (1927) and globe 2.9$ |