Postcard of Boeing 307, by , c. 2003, Smithsonian Archives - History Div, Color postcard of the Boeing 307 landing at Washington Dulles International Airport on August 5, 2003. The plane is housed at the Steven F. Udvar-Hazy Center of the National Air and Space Museum, Chantilly, Virginia. The postcard contains basic information about the Boeing 307 and is unused. The message side has a pre-printed note: "Dear _____, The Clipper Flying Cloud is the world's first pressurized airliner! What I think is great about the Clipper Flying Cloud is... [blank space] You have got to come see it!".