X | forever | multi | ||||
X | forever | multi |
- | forever | multi |
X | forever | multi |
- | forever | multi |
X | additional ounce | multi | School Bus |
X | 40c | multi | Red Fox |
X | forever | multi |
X | 6c | org | Curtiss Jenny | |||
X | 16c | grn | Curtiss Jenny | |||
X | 24c | carrose & bl | Curtiss Jenny | |||
- | 24c | carrose & bl | Curtiss Jenny, v. center inverted | 10,000 – 100,000 | 10,000 – 100,000 |
X | 8c | dkgrn | propeller & radiator | |||
X | 16c | dkgrn | emblem | |||
X | 24c | car | De Havilland biplane |
X | 10c | dkbl | mail planes on map of United States | |||
X | 15c | olbrn | mail planes on map of United States | |||
X | 20c | yelgrn | mail planes on map of United States (1927) | 1.00–10. | 1.00–10. |
X | 10c | dkbl | Spirit of St Louis on map of Atlantic |
X | 5c | car & bl | Beacon on Rocky Mountains |
X | 5c | vio | winged globe |
X | 65c | grn | zeppelin over Atlantic | |||
X | $1.30 | brn | zeppelin between continents | |||
X | $2.60 | bl | zeppelin & globe |
- | 5c | vio | winged globe | — | — |
X | 8c | olbis | winged globe |
X | 50c | grn | baby zeppelin |
X | 6c | org | winged globe |
X | 25c | bl | China Clipper over Pacific |
X | 20c | grn | China Clipper over Pacific | |||
X | 50c | car | China Clipper over Pacific |
X | 6c | dkbl & car | bald eagle |
X | 30c | dlbl | winged globe |
X | 5c | car | DC-4 Skymaster |
X | 5c | car | DC-4 Skymaster | — | — |
X | 10c | blk | Pan-American Union building | |||
X | 15c | brtblgrn | New York skyline | |||
X | 25c | bl | San Francisco skyline |
- | 5c | car | DC-4 Skymaster |
X | 5c | brtcar | New York City map |
X | 6c | car | DC-4 Skymaster |
X | 6c | car | Carlyle House & Alexandria Seal & Gadsby's Tavern |
- | 6c | car | DC-4 Skymaster |