From the state archives: "First of Pan American World Airways four-motored airliners with sleeping compartments was the Boeing 307 with still another innovation - the pressurized cabin. Built for added comfort, the clipper was equipped to carry 33 passengers in day flights and 25 at night. Full course meals were served, and dressing rooms were smartly decorated. The cockpits were spacious and outfitted with the most modern equipment befitting the first of the high altitude passenger airliners in the world. Powered by four 1100 horsepower Wright Cyclone engines, the Boeing 307 had a wing span of 107 feet; a length of 74 feet; an overall height of 20 feet, and a gross weight of 45,000 pounds."

The B307 flew at 220 mph, had a range of 1250 miles. Pan American only ordered three of these aircraft in 1937 and each aircraft cost $315,000.

Eleanor Roosevelt christened the first B307 with a bottle of water garnered from all the world's Seven Seas. The first Boeing 307 flew December 31, 1938.