Bill Boeing's airplane business
A seaplane carrying 60 letters launched from Lake Union in 1919 en route to Victoria, British Columbia, where it completed the country’s first international mail flight. The historic flight took off from a floating hangar at the foot of Roanoke Street, the first location of Bill Boeing’s airplane business.
Boeing started his airplane company in this hangar he had built on the shore of Lake Union in December 1915. Image courtesy of MOHAI.