Douglas C-1 in flight. (U.S. Air Force)
Douglas C-1 No. 79 (S/N 25-433) in flight, taken April 28, 1926. (U.S. Air Force photo)
Douglas C-1
This Day in Aviation
Important Dates in Aviation History
Douglas C-1 in flight. (U.S. Air Force)
Douglas C-1 No. 79 (S/N 25-433) in flight, taken April 28, 1926. (U.S. Air Force photo)