Boeing 307 Stratoliners were the world's first fully pressurized commercial airliners. They were able to fly at 20,000 feet, which was deemed "above the weather" at that time. Boeing built just 10 of them. In 1994, Boeing made arrangements with the Smithsonian to restore one of the 307s, the Flying Cloud, and a Boeing team brought the airplane back to Seattle, where the work was done in the original Plant II 307 production hangar by a team of volunteers and Boeing employees. The restoration was completed in 2003 and the Flying Cloud is now on permanent display at the Steven F. Udvar-Hazy Center at the Smithsonian National Air and Space Museum annex near Dulles airport. The restored Flying Cloud is pictured here at Boeing Field prior to delivery to the Smitsonian.