United States
Bureau precanceled
| Country: | United States |
| Type: | Postage stamps |
| Series: | Airmail 1968-1973 |
| Nominal: | 13 ¢ |
| Year: | 1973 |
| Perforation: | line 11 x 10½ |
Airmail 1968-1973
 Winged Airmail Envelope |  Statue Of Liberty 0.14$ |  "USA" and Jet 0.13$ |  Silhouette of Delta Winged Plane 0.18$ |
 Silhouette of Jet Airliner |  "USA" and Jet 0.07$ |  50-Star Runway 0.11$ |