This vintage (1997) collectible envelope commemorates the 50th anniversary of the United States Air Force (1947-1997). The postmark cachet features the iconic U.S. Air Force Thunderbirds demonstration team F-16s. Postmarked 18 September 1997, in Colorado Springs, Colorado at the USAF Academy.
Envelope is protected and comes with a plastic sleeve as shown in the photos.
Measurements (approximate):
26”L
4 1/4”H