This image or file is a work of a
U.S. Air Force Airman or employee, taken or made as part of that person's official duties. As a
work of the
U.S. federal government, the image or file is in the public domain in the United States.
== Summary == {{Information |Description=Boeing XB-17 (Model 299). (U.S. Air Force photo) |Source=http://www.nationalmuseum.af.mil/shared/media/photodb/photos/060706-F-1234S-002.jpg |Date=c. 1936 |Author=U.S. Air Force |Permission=Public Domain, U.S. Air
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